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1.
Phys Rev Lett ; 132(21): 211801, 2024 May 24.
Article in English | MEDLINE | ID: mdl-38856266

ABSTRACT

New calculations for the kinematics of photon decay to fermions in vacuo under an isotropic violation of Lorentz invariance (LV), parametrized by the standard-model extension, are presented in this Letter and used to interpret prompt photon production in LHC data. The measurement of inclusive prompt photon production at the LHC Run 2, with photons observed up to a transverse energy of 2.5 TeV, provides the lower bound κ[over ˜]_{tr}>-1.06×10^{-13} on the isotropic coefficient κ[over ˜]_{tr} at 95% confidence level. This result improves over the previous bound from hadron colliders by a factor of 55. The calculations for the kinematics of photon decay have further potential use to constrain LV coefficients from the appearance of fermion pairs.

2.
Rev. Baiana Saúde Pública ; 48(1): 102-119, 20240426.
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1555779

ABSTRACT

O cenário advindo como consequência da pandemia de covid-19 acarretou diversas mudanças na vida dos profissionais de saúde. A percepção desse grupo torna-se indispensável para a compreensão do contexto, visto que esses trabalhadores são figuras essenciais no enfrentamento da doença. O objetivo deste estudo foi analisar a percepção de gestores e profissionais que atuaram durante a primeira onda da pandemia de covid-19 no município de Sobral (CE). Trata-se de uma pesquisa exploratório-descritiva, com abordagem qualitativa, feita por meio da aplicação de um instrumento de coleta de dados. O estudo foi realizado com gestores e trabalhadores que atuaram de março a dezembro de 2020 no município. A coleta foi feita no formato híbrido, com auxílio da plataforma Google Meet, fundamentada na metodologia snowball sampling e no método de saturação. Após a coleta, os discursos foram transcritos ­ utilizando a ferramenta Microsoft Word ­ e analisados ­ com suporte do software NVivo11. Foram contactados 68 profissionais. Identificou-se predominância final de enfermeiros, sexo feminino e atuantes na atenção terciária. Após análise e categorização, identificaram-se 12 unidades de registro. Foram dispostos os principais desafios e dificuldades acarretados para os processos de trabalho e suas subcategorias: a sobrecarga de trabalho e o desgaste físico; a reorganização dos serviços em resposta à nova realidade; o desconhecimento sobre a doença e seu impacto psicológico no fazer profissional; e o fator social e a dificuldade de seguimento da assistência na atenção primária. Por fim, conclui-se que os desafios identificados se inter-relacionam, repercutindo uns nos outros, e constata-se a importância de conhecer esses entraves para ações mais bem direcionadas e estratégicas.


The scenario that has arisen in response to COVID-19 has led to a variety of changes in the lives of healthcare providers. The perception of this group is essential to understanding this context since they are key figures in coping with the disease. This study aimed to analyze the perception of managers and professionals who worked during the first wave of the COVID-19 pandemic in the municipality of Sobral/CE. This is an exploratory-descriptive study with a qualitative approach that applied a collection instrument with managers and workers who worked from March to December 2020 in the municipality. Data were collected using the Snowball Smapling and the saturation method in a hybrid format using the Google Meet platform. After the collection, responses were transcribed using Microsoft Word and analyzed with the aid of NVivo11. In total, 68 professionals were contacted, with a final predominance of female nurses working in tertiary care. After analysis and categorization, 12 recording units were identified. The main challenges and difficulties for work processes and their subcategories include work overload and physical exhaustion; reorganization of services in response to the new reality; lack of knowledge about the disease and its psychological impact on professional practice; and the social factor and the difficulty of following up care in primary care. Finally, we conclude that the identified challenges are interrelated and have repercussions on each other, and that it is important to understand these obstacles to take more targeted and strategic actions.


El escenario que ha surgido en respuesta a la pandemia de la COVID-19 ha provocado diversos cambios en la vida de los profesionales de la salud. La percepción de este grupo es indispensable para comprender el contexto, ya que estos trabajadores son figuras esenciales en el enfrentamiento a la enfermedad. El objetivo de este estudio fue analizar la percepción de gestores y profesionales que actuaron durante la primera ola de la pandemia de la COVID-19 en el municipio de Sobral (Ceará, Brasil). Se trata de un estudio exploratorio-descriptivo, con enfoque cualitativo, realizado mediante la aplicación de una herramienta de recolección de datos. En esta investigación participaron gestores y trabajadores que actuaron de marzo a diciembre de 2020 en el municipio. Se realizó la recolección en formato híbrido, con ayuda de la plataforma Google Meet, basada en el método bola de nieve y en el método de saturación. Después, se transcribieron los discursos, utilizando la herramienta Microsoft Word, y se analizaron con el apoyo del software NVivo11. Se contactaron 68 profesionales. Se identificó predominio de enfermeros, mujeres y trabajadores de atención terciaria. Después del análisis y de la categorización, se identificaron 12 unidades de registro. Se presentaron los principales retos y dificultades que generan los procesos de trabajo y sus subcategorías: la sobrecarga de trabajo y el agotamiento físico; la reorganización de los servicios en respuesta a la nueva realidad; el desconocimiento de la enfermedad y su impacto psicológico en la práctica profesional; y el factor social y la dificultad de seguimiento de los cuidados en atención primaria. Finalmente, se concluye que los retos identificados están interrelacionados, impactándose entre sí, y se señala la importancia de conocer estos obstáculos para emprender acciones más específicas y estratégicas.

3.
Saúde em Redes ; 10(1): 13, fev. 2024.
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1554846

ABSTRACT

O presente trabalho teve como principal objetivo relatar a vivência acerca do cuidado e atenção à família dos usuários em tratamento oncológico ofertado pelos profissionais de saúde de um Centro de Alta Complexidade em Oncologia localizado no interior do Ceará, durante a Residência Multiprofissional em Cancerologia. A vivência ocorreu ao longo do ano de 2021, sendo no primeiro ano de atuação na residência como Assistente Social, com inserção nos setores de serviços ambulatoriais, enfermaria de oncologia cirúrgica, radioterapia e quimioterapia, juntamente com os demais integrantes da equipe multiprofissional. Tais atendimentos foram ofertados de maneira individual e coletiva, tanto aos usuários quanto aos seus familiares. Foi possível compreender que o diagnóstico de câncer causa diversos impactos, mudanças e dificuldades na dinâmica familiar, sendo necessária a compreensão desses fatores pelos profissionais de saúde. Com isso, percebe-se a importância do núcleo familiar ser incluído no cuidado considerando suas necessidades e potencialidades, por meio do desenvolvimento de práticas de cuidado integrativas e humanizadas que promovam diálogo entre equipe, usuário e família com objetivo de fortalecer a autonomia, participação e corresponsabilização no cuidado em saúde.

5.
Heliyon ; 10(2): e24047, 2024 Jan 30.
Article in English | MEDLINE | ID: mdl-38293372

ABSTRACT

This work proposes a new methodology to identify and validate deep learning models for artificial oil lift systems that use submersible electric pumps. The proposed methodology allows for obtaining the models and evaluating the prediction's uncertainty jointly and systematically. The methodology employs a nonlinear model to generate training and validation data and the Markov Chain Monte Carlo algorithm to assess the neural network's epistemic uncertainty. The nonlinear model was used to overcome the limitations of the need for big datasets for training deep learning models. However, the developed models are validated against experimental data after training and validation with synthetic data. The validation is also performed through the models' uncertainty assessment and experimental data. From the implementation point of view, the method was coded in Python with Tensorflow and Keras libraries used to build the neural Networks and find the hyperparameters. The results show that the proposed methodology obtained models representing both the nonlinear model's dynamic behavior and the experimental data. It provides a most probable value close to the experimental data, and the uncertainty of the generated deep learning models has the same order of magnitude as that of the nonlinear model. This uncertainty assessment shows that the built models were adequately validated. The proposed deep learning models can be applied in several applications requiring a reliable and computationally lighter model. Hence, the obtained AI dynamic models can be employed for digital twin construction, control, and optimization.

6.
Arch Phys Med Rehabil ; 105(6): 1099-1105, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38272247

ABSTRACT

OBJECTIVES: To investigate muscle strength and the prevalence of muscle weakness in adults with interstitial lung diseases (ILDs) compared to healthy subjects. DESIGN: Cross-sectional (description of clinical features). SETTING: Public referral center (University Hospital). PARTICIPANTS: One hundred and twelve adults with ILD (n=48, 60±10yr, 68% female) and healthy counterparts (control group, n=64, 57±10yr, 58% female) (N=112). INTERVENTION: Not applicable. MAIN OUTCOME MEASURE(S): Muscle strength and prevalence of muscle weakness in adults with ILD. Muscle strength was assessed via maximal isometric voluntary contraction of dominant upper and lower limb muscle groups. Data from the control group were used to generate reference equations. Muscle weakness was defined as a muscle strength value below the lower limit of normal calculated using data from the control group. Data were expressed as mean ± SD or median [interquartile range] according to the data distribution. RESULTS: Compared to the control group, adults with ILD had lower muscle strength for all muscle groups assessed (values presented as %predicted: pectoralis major 75[57-86]%; quadriceps 72[58-87]%; latissimus dorsi 76[57-103]%; deltoid 74[64-98]%; biceps brachii 78[64-91]%; triceps brachii 84[62-101]%; P≤.001 for all). Prevalence of muscle weakness in people with ILD was 40% for pectoralis major, 25% for latissimus dorsi, 16% for triceps brachii, 20% for biceps brachii, 27% for deltoid and 46% for quadriceps. CONCLUSIONS: Adults with ILD present a generalised reduction in peripheral Muscle strength, ranging between 20% to 46% of people depending on the muscle group assessed. and it was more prevalent in lower limb muscles.


Subject(s)
Lung Diseases, Interstitial , Muscle Strength , Muscle Weakness , Humans , Female , Male , Lung Diseases, Interstitial/physiopathology , Cross-Sectional Studies , Middle Aged , Muscle Strength/physiology , Muscle Weakness/physiopathology , Aged , Isometric Contraction/physiology , Muscle, Skeletal/physiopathology , Case-Control Studies , Prevalence
7.
Dysphagia ; 39(2): 163-176, 2024 Apr.
Article in English | MEDLINE | ID: mdl-37610669

ABSTRACT

To determine the global prevalence of oropharyngeal dysphagia (OD) in adults. Six electronic databases (Embase, LILACS, LIVIVO, PubMed/Medline, Scopus, and Web of Science) were searched, in addition to gray literature (ASHA, Google Scholar, ProQuest Dissertation, and Theses). A random-effects model for meta-analysis of proportions was conducted, and heterogeneity was evaluated according to the moderator variable through subgroup analysis and meta-regression. The risk of bias was assessed using the Joanna Briggs Institute Critical Appraisal Checklist and the certainty of the evidence was assessed using the GRADE tool. Thirty papers were included for qualitative and quantitative synthesis. The combined prevalence estimate was 60% [CI 95% = 50%-70%; I2 = 95%], accounting for different baseline conditions. However, the wide variation that exists between the different baseline conditions (underlying disease or risk factor) tended to overestimate this prevalence when considering the general population. Only one study evaluated healthy individuals, which showed a prevalence of 31% [CI95% = 27%-36%]. The risk of bias was considered low for all studies. None of the variables were considered predictors for the observed variance between the effect sizes of the included studies. For the prevalence of OD, the GRADE rating was considered very low. Despite the high prevalence observed, with over half of the individuals affected, the evidence regarding this outcome remains uncertain due to an overestimation of the generated estimates caused by the baseline condition of the sample.


Subject(s)
Deglutition Disorders , Adult , Humans , Deglutition Disorders/epidemiology , Prevalence
8.
Physiother Theory Pract ; 40(4): 736-745, 2024 Apr.
Article in English | MEDLINE | ID: mdl-36622293

ABSTRACT

BACKGROUND: Despite the high prevalence of sleep disturbances in idiopathic pulmonary fibrosis (IPF), the relationship between physical activity in daily life (PADL) and sleep in this population remains unclear. OBJECTIVES: Investigate the impact of sleep on different domains of PADL in IPF and characterize their PADL profile. METHODS: Sixty-seven participants (thirty-three with IPF and thirty-four healthy subjects [control group]) were included. The subjects underwent assessments of pulmonary function, exercise capacity, respiratory and peripheral muscle strength, PADL, sleep, dyspnea, and health-related quality of life. PADL and sleep measures were assessed using an activity monitor (Actigraph®, wGT3x-BT). Associations between sleep and PADL were done using correlation and regression models. RESULTS: In the IPF, sleep duration at night associated significantly with step counts, sedentary, light, and moderate-to-vigorous physical activity (MVPA) (-0.82 ≤ R ≤ 0.43; p < .05 for all). Lung function and sleep partially explained PADL variables (0.19 ≤ R2 ≤ 0.65, p < .05 for all). Compared to controls, the IPF subjects presented lower step counts, less time spent in MVPA, standing position, and more time spent in lying position (p < .05, for all). CONCLUSIONS: Sleep duration is associated with PADL in IPF. The PADL profile of patients is worse than in control subjects.


Subject(s)
Idiopathic Pulmonary Fibrosis , Quality of Life , Humans , Sleep Duration , Exercise/physiology , Lung
9.
Arq. ciências saúde UNIPAR ; 27(2): 795-812, Maio-Ago. 2023.
Article in Portuguese | LILACS | ID: biblio-1424953

ABSTRACT

Objetivo: Identificar os motivos pelos quais levaram os estudantes a escolherem a formação universitário em Enfermagem. Metodologia: Estudo exploratório- descritivo, sob abordagem qualitativa, desenvolvido com 276 acadêmicos de Enfermagem de uma universidade pública do Noroeste do estado do Ceará, Brasil. As informações foram coletadas por meio de um questionário eletrônico, aplicado por meio da plataforma Google Forms®. Essas por sua vez, foram analisadas a partir de análise de conteúdo proposto por Minayo, com o suporte do software N VIVO 11®. Resultados: As palavras mais referidas pelos estudantes ao serem questionados acerca dos motivos na escolha do curso de Enfermagem, foram: "Área", "Saúde", "Curso" e "Profissão", as quais suscitam que em algumas situações a escolha do curso aconteceu pela área da Saúde e não pelo curso em específico. Entretanto, outras palavras com maior quantitativo de repetição foram identificadas: "Sempre", "Gosto" e "Enfermagem", que por sua vez, demonstram a identificação com o curso de Enfermagem em específico e com o fazer da profissão. A partir de então, foram definidas seis categorias de análise, a saber "Identificar-se com a profissão", "Determinação Social e Mercado de Trabalho", "Enfermagem como segunda ou única opção", "Influências externas", "Permanência na área da Saúde" e "Vocação e visão solidária-romântica". Considerações finais: A partir dos discursos dos participantes em estudo, evidenciou-se que os motivos pelos quais levaram esses a ingressarem no curso universitário em Enfermagem estão associados ao imaginário da vocação, da concepção da Enfermagem enquanto profissão voltada para o cuidar/cuidado, bem como pelo o interesse de atuação na área da saúde.


Objective: To identify the reasons why students chose a university degree in Nursing. Methodology: Exploratory-descriptive study, under a qualitative approach, developed with 276 Nursing students from a public university in the Northwest of the state of Ceará, Brazil. Information was collected through an electronic questionnaire, applied through the Google Forms® platform. These, in turn, were analyzed based on the content analysis proposed by Minayo, with the support of the N VIVO 11® software. Results: The words most mentioned by students when asked about the reasons for choosing the Nursing course were: "Area", "Health", "Course" and "Profession", which suggest that in some situations the choice of course happened by the Health area and not by the specific course. However, other words with a higher number of repetitions were identified: "Always", "I like" and "Nursing", which, in turn, demonstrate identification with the Nursing course in particular and with the profession. From then on, six categories of analysis were defined, namely "Identifying with the profession", "Social Determination and the Labor Market", "Nursing as a second or only option", "External influences", "Permanence in the area of Health" and "Vocation and solidarity-romantic vision". Final considerations: From the speeches of the participants in the study, it was evident that the reasons why they entered the university course in Nursing are associated with the imaginary of the vocation, of the conception of Nursing as a profession focused on care/care, as well as as well as the interest in acting in the health area.


Objetivo: Identificar las razones por las cuales los estudiantes eligieron la carrera universitaria de Enfermería. Metodología: Estudio exploratorio-descriptivo, con abordaje cualitativo, desarrollado con 276 estudiantes de Enfermería de una universidad pública del Noroeste del estado de Ceará, Brasil. La información se recolectó a través de un cuestionario electrónico, aplicado a través de la plataforma Google Forms®. Estos, a su vez, fueron analizados con base en el análisis de contenido propuesto por Minayo, con el apoyo del software N VIVO 11®. Resultados: Las palabras más mencionadas por los estudiantes cuando se les preguntó acerca de los motivos de la elección de la carrera de Enfermería fueron: "Área", "Salud", "Curso" y "Profesión", lo que sugiere que en algunas situaciones la elección de la carrera pasó por la carrera de Enfermería. área y no por el curso específico. Sin embargo, fueron identificadas otras palabras con mayor número de repeticiones: "Siempre", "Me gusta" y "Enfermería", que, a su vez, demuestran identificación con la carrera de Enfermería en particular y con la profesión. A partir de ahí, se definieron seis categorías de análisis, a saber, "Identificación con la profesión", "Determinación social y mercado de trabajo", "Enfermería como segunda o única opción", "Influencias externas", "Permanencia en el área de la Salud". " y "Vocación y visión solidaria-romántica". Consideraciones finales: A partir de los discursos de los participantes en el estudio, se evidenció que las razones por las cuales ingresaron a la carrera universitaria en Enfermería están asociadas al imaginario de la vocación, de la concepción de la Enfermería como profesión enfocada en el cuidado, así como el interés por actuar en el área de la salud.


Subject(s)
Humans , Male , Female , Adult , Career Choice , Nursing , Nurses , Students, Nursing , Catchment Area, Health/statistics & numerical data , Education, Nursing , Job Market , Health Occupations/education
10.
Article in English | MEDLINE | ID: mdl-37982311

ABSTRACT

INTRODUCTION: Children grow up spending most of their time within the family social environment, where they can experience stressful situations such as marital conflict, a non-cohesive environment, parental alcohol use disorder, parental depression, and other parental mental health issues. All these factors are associated with children's developmental delays. OBJECTIVE: We aimed to conduct a scoping review on family stress and family resilience associated with child development delays to examine familial conditions associated with child development. METHODS: We conducted a scoping review of observational studies published between January 2000 to July 2023, indexed in MEDLINE and LILACS databases. We included observational studies that evaluated the history of exposure to violence, and behavioral or emotional symptoms, or mental health problems among children aged 4-12. Data were independently extracted using a structured form. RESULTS: Database searches identified 12,990 different records. A total of 43 articles were included in the review. Three main findings emerged: (1) parental mental health problems, especially depressive symptoms in mothers, were associated with child developmental delays and mental health problems; (2) better parenting practices and cohesive home environment were positively associated with child development, and (3) Vulnerable social environments (e.g., poverty and housing insecurity) may be linked to child mental health problems. CONCLUSIONS: Studies reviewed show that promoting better family dynamics and increasing family cohesion, as well as parenting abilities, are beneficial to a child's socio-emotional development and prevention of child mental health problems. Moreover, increasing family and children's resilience improves the quality of life within family units.

11.
Einstein (Sao Paulo) ; 21: eAO0291, 2023.
Article in English | MEDLINE | ID: mdl-37878969

ABSTRACT

Morais et al. conducted a pioneering study with Brazilian indigenous populations to determine reference values for immunologic cells from healthy adult individuals. The main findings included a higher relative median for T lymphocyte subsets in females than males, and T CD3+, T CD4+, and T CD8+ relative values were statistically different when compared with Brazilian populations from other Brazilian regions. The relative medians of CD3+, CD4+, and CD8+ T cells were significantly higher in women than in men in a healthy indigenous population. Demographic and ethnic diversity of the Brazilian population can be associated with quantitative modifications in the immunologic cells of healthy individuals. OBJECTIVE: The establishment of reference values for a subset of leukocytes is common in clinical practice, and ethnic variations are strongly associated with disease development. In Brazil, indigenous people are vulnerable to infections, and few studies have described the health and disease conditions of this population. This study aimed to provide reference values for immunological cell subsets in indigenous Brazilians living in the state of Mato Grosso do Sul. METHODS: Flow cytometry and 4-color combinations of monoclonal antibodies were used to characterize cells. A total of 115 healthy adults, mostly females (72%), were included in the study. The results are presented as mean and median (2.5%-97.5% percentiles) for T and B lymphocytes, CD4+ T cells, CD8+ T cells, Natural Killer cells, monocytes, and dendritic cells, providing an average immunological profile for the population in question. RESULTS: The relative medians of CD3+, CD4+, and CD8+ T cells were significantly higher in women than in men in a healthy indigenous population. CONCLUSION: To our knowledge, cell reference data from indigenous Brazilians are unknown in the literature. The immune cell results presented in this pioneering study will contribute to the clinical and laboratory evaluation of the Brazilian indigenous population, especially given the important differences when compared with other Brazilian ethnic groups.


Subject(s)
B-Lymphocytes , Monocytes , Adult , Male , Humans , Female , Reference Values , Brazil , Flow Cytometry , Lymphocyte Count
12.
Braz J Microbiol ; 54(4): 2651-2661, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37642890

ABSTRACT

Endophytic fungi produce a range of known metabolites and several others, not yet explored, which present important biological activities from the pharmaceutical and industrial perspective. Several studies have reported the diversity of endophytes in Coffea arabica plants, although few have been described in organic cultures. In the current paper, we describe the chemical profile of specialized metabolites in the ethyl acetate phase in a strain of the endophytic fungus Colletotrichum siamense associated with coffee (Coffea arabica L.) (Rubiaceae) and its potential against tumor cells and bacteria of medical and food importance. Cytotoxicity assays in tumor cells MCF-7 and HepG2/C3A were performed by MTT and microdilution in broth to evaluate the antibacterial action of metabolic extract. The antiproliferative assay showed promising results after 24 h of treatment, with 50% injunction concentrations for the two cell types. UHPLC-MS/MS analyses with an electrospray ionization source were used to analyze the extracts and identify compounds of species Colletotrichum siamense, which is still little explored as a source of active metabolites. Many of these compounds observed in the endophytic need to be chemically synthesized in industry, at high costs, while production by the fungus becomes a chemically and economically more viable alternative. Pyrocatechol, gentisyl alcohol, and alpha-linolenic acid, associated with different mechanisms of action against tumor cells, were detected among the main compounds. The extract of the endophytic fungus Colletotrichum siamense presented several compounds with pharmacological potential and antibacterial activity, corroborating its potential in biotechnological applications.


Subject(s)
Coffea , Colletotrichum , Coffea/microbiology , Coffee/metabolism , Tandem Mass Spectrometry , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/metabolism , Plant Extracts/pharmacology , Plant Extracts/metabolism , Endophytes
13.
Chemosphere ; 340: 139956, 2023 Nov.
Article in English | MEDLINE | ID: mdl-37640209

ABSTRACT

The incorrect disposal of textile dyes, such as Reactive Black 5 (RB5), causes several problems for living beings and the quality of the environment. Nanobiocomposites (NBC) produced from endophytic fungi (potentially remediation dyes-agents) and magnetic nanoparticles have high biotechnological potential due to their superparamagnetic behavior, which would allow their recovery through the magnetic field after the bioremediation process. This work aimed to obtain a new nanobiocomposite from the interaction of magnetite nanoparticles (Fe3O4) with the endophyte Aspergillus flavus (Af-CL-7) to evaluate its bioremediation capacity and to reduce the toxicity of RB5 and its reuse. Before obtaining the NBC, Af-CL-7 showed discoloration of RB5 and it was tolerant to all tested concentrations of this dye. The discovery of the nanobiocomposite textile dye bioremediator product presents a significant environmental advantage by addressing the issue of water pollution caused by textile dyes. The NBC called Af-Fe3O4 was successfully obtained with the magnetized endophyte, and their magnetic properties were verified by VSM analysis and by action of magnetic fields generated by Nd-Fe-B magnets SEM analyzes showed that the nanoparticles did not cause any damage to the hypha morphology, and TEM analyzes confirmed the presence of nanoparticles in the fungus wall and also inside the cell. The NBC Af-Fe3O4 and Af-CL-7 showed, respectively, 96.1% and 92.2% of RB5 discoloration in the first use, 91.1% e 86.2% of discoloration in the validation test, and 89.0% in NBC reuse. In the toxicological bioassay with Lactuca sativa seeds, NBC showed a positive reduction in the toxicity of RB5 after treatment, allowing the hypocotyl growth to be statistically similar to the control with water. Thus, we highlight the promising obtaining process of NBC that could be applied in bioremediation of contaminated waters, wherein the industrial economic cost will depend on the fermentation efficiency, biomass production and nanoparticle synthesis.


Subject(s)
Aspergillus flavus , Magnetite Nanoparticles , Biodegradation, Environmental , Fungi , Coloring Agents , Endophytes
14.
Chemosphere ; 340: 139831, 2023 Nov.
Article in English | MEDLINE | ID: mdl-37607598

ABSTRACT

The objective of this work was to evaluate elemental changes in pepper exposed to Cd stress through different chemometric tools. For this purpose, pepper plants were grown under five different treatments with different Cd concentrations in the nutrient solution. Considering the hypothesis that pepper plants exposed to Cd stress during growth undergo changes in the macro- and microelemental distribution in leaves, stems, and roots, principal component analysis (PCA) and parallel factor (PARAFAC) analysis were applied to compare bidirectional and multivariate chemometric strategies to assess elemental changes in pepper plants. Since the number of variables and the data generated were large and complex, the application of chemometric tools was justified to facilitate the visualization and interpretation of results. The mineral composition, namely the Ca, Cd, Cu, Fe, K, Mg, Mn, N, and P contents, was assessed in 180 samples of leaves, stems, and roots of the cultivated peppers. Then, PCA and PARAFAC analysis were applied to compare bidirectional and multivariate chemometric strategies to assess elemental changes throughout pepper plants. The visualization of the trend on each sample and their intrinsic relationship with the variables were possible with the application of PCA. The use of PARAFAC analysis permitted the simultaneous study of all samples in a straightforward representation of the information that facilitated a quick and comprehensive understanding of the spatial distribution of elements in plants. Thus, macroelements (Ca, K, Mg, N, and P) that were found in higher concentrations in leaves did not present significant differences in the distribution along the plants under different treatment conditions. In contrast, a significant impact on the microelement (Cu, Fe, and Mn) distribution was produced between uncontaminated and contaminated samples. This analysis revealed a significant accumulation of Cd in roots and adverse effects on normal plant growth, demonstrating their level of phytotoxicity to pepper.


Subject(s)
Cadmium , Drug-Related Side Effects and Adverse Reactions , Humans , Cadmium/toxicity , Chemometrics , Food , Nutrients
15.
Viruses ; 15(3)2023 03 21.
Article in English | MEDLINE | ID: mdl-36992509

ABSTRACT

The spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing the COVID-19 outbreak, posed a primary concern of public health worldwide. The most common changes in SARS-CoV-2 are single nucleotide substitutions, also reported insertions and deletions. This work investigates the presence of SARS-CoV-2 ORF7a deletions identified in COVID-19-positive individuals. Sequencing of SARS-CoV-2 complete genomes showed three different ORF7a size deletions (190-nt, 339-nt and 365-nt). Deletions were confirmed through Sanger sequencing. The ORF7a∆190 was detected in a group of five relatives with mild symptoms of COVID-19, and the ORF7a∆339 and ORF7a∆365 in a couple of co-workers. These deletions did not affect subgenomic RNAs (sgRNA) production downstream of ORF7a. Still, fragments associated with sgRNA of genes upstream of ORF7a showed a decrease in size when corresponding to samples with deletions. In silico analysis suggests that the deletions impair protein proper function; however, isolated viruses with partial deletion of ORF7a can replicate in culture cells similarly to wild-type viruses at 24 hpi, but with less infectious particles after 48 hpi. These findings on deleted ORF7a accessory protein gene, contribute to understanding SARS-CoV-2 phenotypes such as replication, immune evasion and evolutionary fitness as well insights into the role of SARS-CoV-2_ORF7a in the mechanism of virus-host interactions.


Subject(s)
COVID-19 , SARS-CoV-2 , Viral Proteins , Humans , Cell Culture Techniques , SARS-CoV-2/genetics , Sequence Analysis , Sequence Deletion , Viral Proteins/genetics , Subgenomic RNA/genetics
16.
Enferm. foco (Brasília) ; 14: 1-6, mar. 20, 2023. graf
Article in Portuguese | LILACS, BDENF - Nursing | ID: biblio-1516513

ABSTRACT

Objetivo: Narrar a experiência de um grupo de pesquisadores e gestores construindo materiais informativos a partir dos dados epidemiológicos dos casos de covid-19 em Sobral - CE. Métodos: Trata-se de um estudo do tipo relato de experiência. Contempla uma experiência vivenciada de maio a agosto de 2020. Resultados: Em reunião via internet, alguns integrantes do grupo de pesquisas Observatório de Pesquisas para o SUS com a participação da secretária da saúde de Sobral, do prefeito de Sobral, de um professor especialista em inteligência artificial para tratar do avanço da pandemia em Sobral e na colaboração dos pesquisadores locais diante desse cenário. As ações firmadas foram: analisar semanalmente os dados epidemiológicos do município, desenvolver semanalmente um boletim epidemiológico com um condensado das informações criadas a partir dos dados, expor projeções da curva da pandemia no município, dispor as redes sociais do grupo de pesquisa para as informações, manter o diálogo entre os profissionais e gestores para ajudar na tomada de decisão. Conclusão: Foi possível estabelecer um fluxo semanal de divulgação do boletim epidemiológico local. A experiência serve como base para decisões de outros locais que buscam alternativas na gestão do cuidado. (AU)


Objective: To narrate the experience of a group of researchers and managers building information materials from the epidemiological data of cases of covid-19 in Sobral - CE. Methods: This is an experience report study. Contemplates an experience lived from May to August 2020. Results: In a meeting via internet, some members of the research group Research Observatory for SUS with the participation of the health secretary of Sobral, the mayor of Sobral, a professor specializing in artificial intelligence to address the pandemic progress in Sobral and the collaboration of local researchers facing this scenario. The actions agreed upon were: analyze weekly the epidemiological data of the city, develop weekly an epidemiological bulletin with a condensed information created from the data, expose projections of the pandemic curve in the city, make available the social networks of the research group for information, maintain dialogue between professionals and managers to help in decision making. Conclusion: It was possible to establish a weekly flow of dissemination of the local epidemiological bulletin. The experience serves as a basis for decisions from other places that seek alternatives in the management of care. (AU)


Objetivo: Narrar la experiencia de un grupo de investigadores y gestores construyendo material informativo a partir de los datos epidemiológicos de los casos de covid-19 en Sobral/CE. Métodos: Se trata de un estudio de informe de experiencia. Contempla una experiencia vivida de mayo a agosto de 2020. Resultados: En una reunión vía internet, algunos miembros del grupo de investigación Observatorio para el SUS con la participación del secretario de salud de Sobral, el alcalde de Sobral, un profesor experto en inteligencia artificial para abordar el avance de la pandemia en Sobral y en la colaboración de los investigadores locales frente a este escenario. Las acciones acordadas fueron: analizar semanalmente los datos epidemiológicos del municipio, elaborar semanalmente un boletín epidemiológico con una información condensada creada a partir de los datos, exponer proyecciones de la curva pandémica en el municipio, poner a disposición las redes sociales del grupo de investigación para su información, mantener el diálogo entre profesionales y gestores para ayudar en la toma de decisiones. ]Conclusión: Fue posible establecer un flujo semanal de divulgación del boletín epidemiológico local. La experiencia sirve de base para las decisiones de otros lugares que buscan alternativas en la gestión del cuidado. (AU)


Subject(s)
Coronavirus , Health Personnel , Decision Making , Pandemics
17.
Child Psychiatry Hum Dev ; 54(4): 1102-1111, 2023 Aug.
Article in English | MEDLINE | ID: mdl-35088156

ABSTRACT

This study examined how different domains of social capital and of social support among caregivers are associated with social-emotional development in children ages 4-6 and how caregiver depressive symptoms modify these associations. Using a stratified random sample of preschools, data included a cross-sectional study of 1147 child-caregiver pairs (543 girls) in a low-income municipality in Brazil. Crude and adjusted linear regression models revealed that all domains of social support and two domains of social capital were associated with less social-emotional development delay in children. Given a significant proportion of children in low- and middle-income countries do not meet developmental milestones, strengthening caregiver social capital and support in these settings may have the potential to improve child social-emotional development.


Subject(s)
Caregivers , Social Capital , Child, Preschool , Female , Humans , Caregivers/psychology , Cross-Sectional Studies , Emotions , Child Development , Social Support
18.
Child Psychiatry Hum Dev ; 54(6): 1823-1832, 2023 12.
Article in English | MEDLINE | ID: mdl-35704135

ABSTRACT

Social influence can shape early childhood at different levels. We explored the association between social vulnerability and lifetime caregiver alcohol use with children's psychiatric symptoms. Multivariable logistic regression assessed the association between child psychiatric symptoms and social vulnerability among 1275 preschool child-caregiver pairs with lifetime caregiver alcohol used as a control variable. Of the children, 15.78% (95% CI 15.17-16.42) had internalizing symptoms, 2.49% (95% CI 2.19-2.83) had externalizing symptoms, and 9.36% (95% CI 8.88-9.86) had internalizing/externalizing symptoms. High social vulnerability was positively correlated with internalizing (aRRR 1.54; 95% CI 1.41-1.68) and internalizing/externalizing symptoms (aRRR 1.77; 95% CI 1.58-2.00). Low family support was strongly associated with internalizing/externalizing symptoms (aRRR 2.60; 95% CI 2.20-3.10). Lifetime caregiver alcohol use was positively correlated with all three psychiatric symptoms (aRRR 1.33; 95% CI 1.18-1.51; aRRR 1.13; 95% CI 1.06-1.59; and aRRR 1.26; 95% CI 1.12-1.42). Their association with children's mental health outcomes calls for social policy changes at the macrosystem level.


Subject(s)
Social Support , Social Vulnerability , Humans , Child, Preschool , Family Support
19.
Einstein (Säo Paulo) ; 21: eAO0291, 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1520850

ABSTRACT

ABSTRACT Objective The establishment of reference values for a subset of leukocytes is common in clinical practice, and ethnic variations are strongly associated with disease development. In Brazil, indigenous people are vulnerable to infections, and few studies have described the health and disease conditions of this population. This study aimed to provide reference values for immunological cell subsets in indigenous Brazilians living in the state of Mato Grosso do Sul. Methods Flow cytometry and 4-color combinations of monoclonal antibodies were used to characterize cells. A total of 115 healthy adults, mostly females (72%), were included in the study. The results are presented as mean and median (2.5%-97.5% percentiles) for T and B lymphocytes, CD4+ T cells, CD8+ T cells, Natural Killer cells, monocytes, and dendritic cells, providing an average immunological profile for the population in question. Results The relative medians of CD3+, CD4+, and CD8+ T cells were significantly higher in women than in men in a healthy indigenous population. Conclusion To our knowledge, cell reference data from indigenous Brazilians are unknown in the literature. The immune cell results presented in this pioneering study will contribute to the clinical and laboratory evaluation of the Brazilian indigenous population, especially given the important differences when compared with other Brazilian ethnic groups.

20.
Acta Paul. Enferm. (Online) ; 36: eAPE00532, 2023. tab, graf
Article in Portuguese | LILACS-Express | BDENF - Nursing, LILACS | ID: biblio-1439013

ABSTRACT

Resumo Objetivo Validar um instrumento de competências para o gerenciamento de equipes de Estratégia Saúde da Família (ESF) Métodos Trata-se de uma pesquisa descritiva e metodológica de abordagem quantitativa realizada entre os anos de 2019 e 2020 com enfoque na validação de âmbito nacional do Instrumento: Avaliação das competências gerenciais na ESF. A validação das competências ocorreu por meio da técnica Delphi e a consistência interna foi examinada por meio do Alpha de Cronbach. Resultados Por meio da técnica Delphi, realizada com experts de áreas relacionadas ao constructo, foram validadas 47 competências, subdivididas em três dimensões: conhecimentos, habilidades e atitudes. A partir de então, as 47 competências foram decompostas em 25 itens do instrumento de avaliação. Este instrumento foi aplicado com gerentes de unidades básicas de saúde, com a finalidade de proceder a avaliação da consistência interna entre os itens. A matriz de correlação entre os itens do instrumento demonstrou forte correlação, o que representa que o instrumento possui níveis altos de confiabilidade. Conclusão O processo de validação demonstrou consistência interna entre os itens, de modo que o instrumento de avaliação das competências gerenciais mostrou-se apto para aplicação em pesquisas no âmbito da ESF.


Resumen Objetivo Validar un instrumento de competencias para la gestión de equipos de Estrategia Salud de la Familia (ESF). Métodos Se trata de una investigación descriptiva y metodológica de enfoque cuantitativo realizada entre los años 2019 y 2020 centrada en la validación de ámbito nacional del Instrumento: Evaluación de las competencias de gestión en la ESF. La validación de las competencias se realizó por medio del método Delphi y la consistencia interna se examinó por medio del alfa de Cronbach. Resultados Mediante el método Delphi, realizado con especialistas de áreas relacionadas con el constructo, se validaron 47 competencias, subdivididas en tres dimensiones: conocimientos, habilidades y actitudes. A partir de ahí, se desglosaron las 47 competencias en 25 ítems del instrumento de evaluación. Este instrumento se aplicó con gerentes de unidades básicas de salud, con la finalidad de proceder a la evaluación de la consistencia interna entre los ítems. La matriz de correlación entre los ítems del instrumento evidenció una fuerte correlación, lo que representa que el instrumento tiene altos niveles de fiabilidad. Conclusión El proceso de validación demostró consistencia interna entre los ítems, de modo que el instrumento de evaluación de las competencias de gestión demostró ser apto para uso en investigaciones en el ámbito de la ESF.


Abstract Objective To validate an instrument on competence for managing Family Health Strategy (FHS) teams. Methods This is a descriptive and methodological research with a quantitative approach carried out between 2019 and 2020 with a focus on the nationwide validity of FHS management competence assessment instrument. The validity of competences was performed using the Delphi technique and internal consistency was examined using Cronbach's alpha. Results Using the Delphi technique, performed with experts from areas related to the construct, 47 competences were validated, subdivided into three dimensions: knowledge, skills and attitudes. From then on, the 47 competences were broken down into 25 items of an assessment instrument. This instrument was applied with managers of Basic Health Units, in order to proceed with internal consistency assessment between items. The correlation matrix between the instrument items showed a strong correlation, which means that the instrument has high levels of reliability. Conclusion The validity process demonstrated internal consistency between items so that the instrument for assessing management competences proved to be suitable for application in research within the scope of FHS.

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