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1.
An Acad Bras Cienc ; 96(2): e20230240, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38747786

RESUMO

There are few studies related to the biological and ecological aspects of the glass snake, a limbless lizard and with a wide geographic distribution. The aim of this study was to analyze the locomotion mode of specimens of Ophiodes cf. fragilis in different substrates and to investigate the morphological adaptations associated with this type of behavior. We observed that the analyzed specimens presented slide-push locomotion modes and lateral undulation in different substrates, using their hind limbs to aid locomotion in three of the four substrates analyzed. The bones of the hind limbs (proximal - femur - and distal - tibia and fibula) were present and highly reduced and the femur is connected to a thin pelvic girdle. Our data support that hind limbs observed in species of this genus are reduced rather than vestigial. The costocutaneous musculature was macroscopically absent. This is the first study of locomotor behavior and morphology associated with locomotion in Ophiodes, providing important information for studies on morphological evolution in the genus.


Assuntos
Adaptação Fisiológica , Lagartos , Locomoção , Animais , Lagartos/anatomia & histologia , Lagartos/fisiologia , Lagartos/classificação , Locomoção/fisiologia , Adaptação Fisiológica/fisiologia , Membro Posterior/anatomia & histologia , Membro Posterior/fisiologia
2.
Infant Behav Dev ; 75: 101954, 2024 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-38763014

RESUMO

This paper aims to identify how cognitive and emotional self-regulation (SR) processes in infants from 0 to 36 months are defined within the Latin American academic context. A systematic review based on the PRISMA methodology was implemented to review the conceptual and operational definition of SR, the type of study, the country of origin of the authors, and the reference to the adequacy of the research to the specific cultural context of Latin America. Twenty-two papers that met the selection criteria were selected. The study identified four types of conceptual definitions for SR, each associated with different constructs or sets of constructs: executive functions, temperament, the integration of executive functions and temperament, and physiological homeostasis. These definitions were based on mainstream approaches to SR rather than being specific to the Latin American region. The study also found compatibility between the sample and some observed trends. On one hand, there was an underrepresentation of the Latin American population in high-impact publications on the subject. However, from 2010 to the present, there is evidence of growth in publications on SR in the analyzed sample. On the other hand, the sample also indicates a disparate representation of the countries of Latin America and the Caribbean in existing publications. Finally, concerning the adaptation to the cultural context of the research, a small number of studies addressed this variable in a specific and significant way. However, even in these cases, the approach is based on models and hypotheses that are limited to understanding the Latin American region's cultural, socioeconomic, and demographic diversity.

3.
Vet Sci ; 11(5)2024 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-38787162

RESUMO

Musculoskeletal injuries such as equine osteoarthritis, osteoarticular defects, tendonitis/desmitis, and muscular disorders are prevalent among sport horses, with a fair prognosis for returning to exercise or previous performance levels. The field of equine medicine has witnessed rapid and fruitful development, resulting in a diverse range of therapeutic options for musculoskeletal problems. Staying abreast of these advancements can be challenging, prompting the need for a comprehensive review of commonly used and recent treatments. The aim is to compile current therapeutic options for managing these injuries, spanning from simple to complex physiotherapy techniques, conservative treatments including steroidal and non-steroidal anti-inflammatory drugs, hyaluronic acid, polysulfated glycosaminoglycans, pentosan polysulfate, and polyacrylamides, to promising regenerative therapies such as hemoderivatives and stem cell-based therapies. Each therapeutic modality is scrutinized for its benefits, limitations, and potential synergistic actions to facilitate their most effective application for the intended healing/regeneration of the injured tissue/organ and subsequent patient recovery. While stem cell-based therapies have emerged as particularly promising for equine musculoskeletal injuries, a multidisciplinary approach is underscored throughout the discussion, emphasizing the importance of considering various therapeutic modalities in tandem.

4.
mSphere ; 9(5): e0006024, 2024 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-38647313

RESUMO

Enterobacter cloacae is an emerging pathogen isolated in healthcare-associated infections. A major virulence factor of this bacterium is the type VI secretion system (T6SS). The genome of E. cloacae harbors two T6SS gene clusters (T6SS-1 and T6SS-2), and the functional characterization of both systems showed that these two T6SSs are not expressed under the same conditions. Here, we report that the major histone-like protein HU positively regulates the expression of both T6SSs and, therefore, the function that each T6SS exerts in E. cloacae. Single deletions of the genes encoding the HU subunits (hupA and hupB) decreased mRNA levels of both T6SS. In contrast, the hupA hupB double mutant dramatically affected the T6SS expression, diminishing its transcription. The direct binding of HU to the promoter regions of T6SS-1 and T6SS-2 was confirmed by electrophoretic mobility shift assay. In addition, single and double mutations in the hup genes affected the ability of inter-bacterial killing, biofilm formation, adherence to epithelial cells, and intestinal colonization, but these phenotypes were restored when such mutants were trans-complemented. Our data broaden our understanding of the regulation of HU-mediated T6SS in these pathogenic bacteria. IMPORTANCE: T6SS is a nanomachine that functions as a weapon of bacterial destruction crucial for successful colonization in a specific niche. Enterobacter cloacae expresses two T6SSs required for bacterial competition, adherence, biofilm formation, and intestinal colonization. Expression of T6SS genes in pathogenic bacteria is controlled by multiple regulatory systems, including two-component systems, global regulators, and nucleoid proteins. Here, we reported that the HU nucleoid protein directly activates both T6SSs in E. cloacae, affecting the T6SS-related phenotypes. Our data describe HU as a new regulator involved in the transcriptional regulation of T6SS and its impact on E. cloacae pathogenesis.


Assuntos
Proteínas de Bactérias , Proteínas de Ligação a DNA , Enterobacter cloacae , Regulação Bacteriana da Expressão Gênica , Sistemas de Secreção Tipo VI , Enterobacter cloacae/genética , Enterobacter cloacae/metabolismo , Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo , Sistemas de Secreção Tipo VI/genética , Sistemas de Secreção Tipo VI/metabolismo , Proteínas de Ligação a DNA/genética , Proteínas de Ligação a DNA/metabolismo , Regiões Promotoras Genéticas , Família Multigênica
5.
PLoS One ; 19(4): e0298297, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38620019

RESUMO

INTRODUCTION: Subjective well-being has numerous indicators of global well-being, however, the most important are life satisfaction and attachments, which can be both positive and negative. The leadership of the coach is an integral part of the process that cares for the relationship of the athlete and coach, where the coach has a fundamental role on the athlete, and consequently on his subjective well-being. OBJECTIVE: The study has the purpose to analyse if and in what way the Basic Psychological Needs-relationship, autonomy and social relationship (mediator 1, M1) and the autonomous motivation (mediator 2, M2) mediate the relationship of the variables of democratic style (independent variable, X) with subjective well-being-life satisfaction and positive attachment (dependent variable, Y). METHODS: In this cross-sectional study, participated 94 athletes with Intellectual and Developmental Difficulty (IDD), aged between 11 and 63 years (x = 32.6 ± SD = 13.8 years) of both genders. Statistical analysis was performed using multiple serial mediation models, using the macro PROCESS for SPSS, version 3 (model 6), using the bootstrap method with 10000 samples. RESULTS AND CONCLUSIONS: There is a mediation effect between those of basic psychological needs and autonomous motivation, exercised between the democratic leadership profile of the coach and the subjective welfare of the athlete. On the other hand, autocratic style has a significant direct effect on the increase in basic psychological needs and controlled motivation. However, the democratic style is more consistent in this type of analysis. Our results reinforce the importance of promoting a democratic leadership style on the part of the coach in their athletes, enhancing a direct effect on life satisfaction and positive attachment in athletes adapted with IDD members of the Special Olympics.


Assuntos
Motivação , Esportes , Humanos , Masculino , Feminino , Criança , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Estudos Transversais , Liderança , Esportes/psicologia , Atletas/psicologia , Relações Interpessoais
6.
Sensors (Basel) ; 24(8)2024 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-38676053

RESUMO

Wearable Biosensor Technology (WBT) has emerged as a transformative tool in the educational system over the past decade. This systematic review encompasses a comprehensive analysis of WBT utilization in educational settings over a 10-year span (2012-2022), highlighting the evolution of this field to address challenges in education by integrating technology to solve specific educational challenges, such as enhancing student engagement, monitoring stress and cognitive load, improving learning experiences, and providing real-time feedback for both students and educators. By exploring these aspects, this review sheds light on the potential implications of WBT on the future of learning. A rigorous and systematic search of major academic databases, including Google Scholar and Scopus, was conducted in accordance with the PRISMA guidelines. Relevant studies were selected based on predefined inclusion and exclusion criteria. The articles selected were assessed for methodological quality and bias using established tools. The process of data extraction and synthesis followed a structured framework. Key findings include the shift from theoretical exploration to practical implementation, with EEG being the predominant measurement, aiming to explore mental states, physiological constructs, and teaching effectiveness. Wearable biosensors are significantly impacting the educational field, serving as an important resource for educators and a tool for students. Their application has the potential to transform and optimize academic practices through sensors that capture biometric data, enabling the implementation of metrics and models to understand the development and performance of students and professors in an academic environment, as well as to gain insights into the learning process.


Assuntos
Técnicas Biossensoriais , Dispositivos Eletrônicos Vestíveis , Técnicas Biossensoriais/instrumentação , Humanos , Eletroencefalografia/métodos , Eletroencefalografia/instrumentação , Educação , Estudantes , Aprendizagem
7.
Sensors (Basel) ; 24(6)2024 Mar 09.
Artigo em Inglês | MEDLINE | ID: mdl-38544039

RESUMO

This study centers on creating a real-time algorithm to estimate brain-to-brain synchronization during social interactions, specifically in collaborative and competitive scenarios. This type of algorithm can provide useful information in the educational context, for instance, during teacher-student or student-student interactions. Positioned within the context of neuroeducation and hyperscanning, this research addresses the need for biomarkers as metrics for feedback, a missing element in current teaching methods. Implementing the bispectrum technique with multiprocessing functions in Python, the algorithm effectively processes electroencephalography signals and estimates brain-to-brain synchronization between pairs of subjects during (competitive and collaborative) activities that imply specific cognitive processes. Noteworthy differences, such as higher bispectrum values in collaborative tasks compared to competitive ones, emerge with reliability, showing a total of 33.75% of significant results validated through a statistical test. While acknowledging progress, this study identifies areas of opportunity, including embedded operations, wider testing, and improved result visualization. Beyond academia, the algorithm's utility extends to classrooms, industries, and any setting involving human interactions. Moreover, the presented algorithm is shared openly, to facilitate implementations by other researchers, and is easily adjustable to other electroencephalography devices. This research not only bridges a technological gap but also contributes insights into the importance of interactions in educational contexts.


Assuntos
Encéfalo , Eletroencefalografia , Humanos , Reprodutibilidade dos Testes , Eletroencefalografia/métodos , Algoritmos , Estudantes
8.
Front Hum Neurosci ; 18: 1319574, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38545515

RESUMO

Within the field of Humanities, there is a recognized need for educational innovation, as there are currently no reported tools available that enable individuals to interact with their environment to create an enhanced learning experience in the humanities (e.g., immersive spaces). This project proposes a solution to address this gap by integrating technology and promoting the development of teaching methodologies in the humanities, specifically by incorporating emotional monitoring during the learning process of humanistic context inside an immersive space. In order to achieve this goal, a real-time emotion recognition EEG-based system was developed to interpret and classify specific emotions. These emotions aligned with the early proposal by Descartes (Passions), including admiration, love, hate, desire, joy, and sadness. This system aims to integrate emotional data into the Neurohumanities Lab interactive platform, creating a comprehensive and immersive learning environment. This work developed a ML, real-time emotion recognition model that provided Valence, Arousal, and Dominance (VAD) estimations every 5 seconds. Using PCA, PSD, RF, and Extra-Trees, the best 8 channels and their respective best band powers were extracted; furthermore, multiple models were evaluated using shift-based data division and cross-validations. After assessing their performance, Extra-Trees achieved a general accuracy of 94%, higher than the reported in the literature (88% accuracy). The proposed model provided real-time predictions of VAD variables and was adapted to classify Descartes' six main passions. However, with the VAD values obtained, more than 15 emotions can be classified (reported in the VAD emotion mapping) and extend the range of this application.

9.
Mar Biotechnol (NY) ; 26(2): 276-287, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38441733

RESUMO

The present study aims to characterize and to evaluate the biological effects of a skin dressing manufactured with the organic part of the Chondrilla caribensis marine sponge (called spongin-like collagen (SC)) associated or not to photobiomodulation (PBM) on the skin wound healing of rats. Skin dressings were manufactured with SC and it was characterized using scanning electron microscopy (SEM) and a tensile assay. In order to evaluate its biological effects, an experimental model of cutaneous wounds was surgically performed. Eighteen rats were randomly distributed into three experimental groups: control group (CG): animals with skin wounds but without any treatment; marine collagen dressing group (DG): animals with skin wounds treated with marine collagen dressing; and the marine collagen dressing + PBM group (DPG): animals with skin wounds treated with marine collagen dressing and PBM. Histopathological, histomorphometric, and immunohistochemical evaluations (qualitative and semiquantitative) of COX2, TGFß, FGF, and VEGF were done. SEM demonstrates that the marine collagen dressing presented pores and interconnected fibers and adequate mechanical strength. Furthermore, in the microscopic analysis, an incomplete reepithelialization and the presence of granulation tissue with inflammatory infiltrate were observed in all experimental groups. In addition, foreign body was identified in the DG and DPG. COX2, TGFß, FGF, and VEGF immunostaining was observed predominantly in the wound area of all experimental groups, with a statistically significant difference for FGF immunostaining score of DPG in relation to CG. The marine collagen dressing presented adequate physical characteristics and its association with PBM presented favorable biological effects to the skin repair process.


Assuntos
Bandagens , Colágeno , Poríferos , Pele , Cicatrização , Animais , Cicatrização/efeitos da radiação , Ratos , Colágeno/metabolismo , Pele/efeitos da radiação , Terapia com Luz de Baixa Intensidade , Masculino , Fator A de Crescimento do Endotélio Vascular/metabolismo , Ciclo-Oxigenase 2/metabolismo , Modelos Animais de Doenças , Ratos Wistar , Fator de Crescimento Transformador beta/metabolismo , Resistência à Tração , Fatores de Crescimento de Fibroblastos/metabolismo , Microscopia Eletrônica de Varredura
10.
Animals (Basel) ; 14(3)2024 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-38338013

RESUMO

Horses are high-performance athletes prone to sportive injuries such as tendonitis and desmitis. The formation of fibrous tissue in tendon repair remains a challenge to overcome. This impels regenerative medicine to develop innovative therapies that enhance regeneration, retrieving original tissue properties. Multipotent Mesenchymal Stem/Stromal Cells (MSCs) have been successfully used to develop therapeutic products, as they secrete a variety of bioactive molecules that play a pivotal role in tissue regeneration. These factors are released in culture media for producing a conditioned medium (CM). The aforementioned assumptions led to the formulation of equine synovial membrane MSCs (eSM-MSCs)-the cellular pool that naturally regenerates joint tissue-combined with a medium enriched in immunomodulatory factors (among other bioactive factors) produced by umbilical cord stroma-derived MSCs (eUC-MSCs) that naturally contribute to suppressing the immune rejection in the maternal-fetal barrier. A description of an equine sport horse diagnosed with acute tarsocrural desmitis and treated with this formulation is presented. Ultrasonographic ligament recovery occurred in a reduced time frame, reducing stoppage time and allowing for the horse's return to unrestricted competition after the completion of a physical rehabilitation program. This study focused on the description of the therapeutic formulation and potential in an equine desmitis treatment using the cells themselves and their secretomes.

11.
Nat Prod Res ; 38(5): 879-884, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37004998

RESUMO

The use of various herbs and their compounds has been a strategy widely used in the fight against various human diseases. For example, rosmarinic acid, a bioactive phenolic compound commonly found in Rosemary plants (Rosmarinus officinalis Labiatae), has multiple therapeutic benefits in different diseases, such as cancer. Therefore, the study aimed to evaluate in silico and in vitro the inhibition potential of the enzyme Elastase from the porcine pancreas by rosmarinic acid isolated from the plant species R. officinalis Linn. Through Molecular Docking, the mechanism of action was investigated. In addition, rosmarinic acid presented a range of 5-60 µg/mL and significantly inhibited Elastase. At 60 µg/mL, there was an inhibition of 55% on the enzymatic activity. The results demonstrate the inhibition of Elastase by rosmarinic acid, which can lead to the development of new enzyme inhibitors that can be an inspiration for developing various drugs, including anticancer drugs.


Assuntos
Ácido Rosmarínico , Rosmarinus , Humanos , Elastase Pancreática , Simulação de Acoplamento Molecular , Extratos Vegetais/farmacologia , Cinamatos/farmacologia , Depsídeos/farmacologia
12.
Int J Med Inform ; 182: 105307, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38061187

RESUMO

Cardiac surgery patients are highly prone to severe complications post-discharge. Close follow-up through remote patient monitoring can help detect adverse outcomes earlier or prevent them, closing the gap between hospital and home care. However, equipment is limited due to economic and human resource constraints. This issue raises the need for efficient risk estimation to provide clinicians with insights into the potential benefit of remote monitoring for each patient. Standard models, such as the EuroSCORE, predict the mortality risk before the surgery. While these are used and validated in real settings, the models lack information collected during or following the surgery, determinant to predict adverse outcomes occurring further in the future. This paper proposes a Clinical Decision Support System based on Machine Learning to estimate the risk of severe complications within 90 days following cardiothoracic surgery discharge, an innovative objective underexplored in the literature. Health records from a cardiothoracic surgery department regarding 5 045 patients (60.8% male) collected throughout ten years were used to train predictive models. Clinicians' insights contributed to improving data preparation and extending traditional pipeline optimization techniques, addressing medical Artificial Intelligence requirements. Two separate test sets were used to evaluate the generalizability, one derived from a patient-grouped 70/30 split and another including all surgeries from the last available year. The achieved Area Under the Receiver Operating Characteristic curve on these test sets was 69.5% and 65.3%, respectively. Also, additional testing was implemented to simulate a real-world use case considering the weekly distribution of remote patient monitoring resources post-discharge. Compared to the random resource allocation, the selection of patients with respect to the outputs of the proposed model was proven beneficial, as it led to a higher number of high-risk patients receiving remote monitoring equipment.


Assuntos
Sistemas de Apoio a Decisões Clínicas , Alta do Paciente , Humanos , Masculino , Feminino , Inteligência Artificial , Assistência ao Convalescente , Aprendizado de Máquina
13.
Front Sports Act Living ; 5: 1284411, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38090045

RESUMO

Introduction: Soccer is considered a multifaceted collective sport, and to reach an elevated level, players must have moderate to high power, good agility, joint flexibility and muscle development. Also, players must be able to generate high torques during fast movements, which implies the development of different capacities, understood as multifactorial preparation. The objective was to analyse the effects of training (aerobic and continuous) on the leg power, fatigue levels, speed, agility, body fat, muscle mass and bone mass of these players. Methods: Seventy-two soccer players, male and under 17, from 4 teams participated. The teams performed 3 times a week training sessions of about 60-90 min each. Informed consent requests were given to their parents for authorisation to participate in this investigation. Data was collected in two different time points, about ten months apart. Specific tests were performed for each variable: the vertical jump with Bosco System for leg power, the T-Test for agility, the linear sprint test for speed and the RAST test for fatigue levels. A precision Tanita scale was used for the anthropometric tests such as body fat, muscle mass and bone mass. Statistical procedures were applied through the Wilcoxon test to compare the two time points of evaluation. Results: Improvements were found between evaluations regarding the level of anthropometric and physical fitness variables. Conclusions: The implemented training improved all the analysed variables with significant statistical values for leg power, speed, bone mass, muscle mass and fat mass.

14.
Nat Prod Res ; : 1-7, 2023 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-38088044

RESUMO

Jungia floribunda Less. is a shrub belonging to the Asteraceae. The infusion of its leaves has been used, in folk medicine of several South American countries, as anti-inflammatory and hypoglycaemic agent. In the present study, the infusion of leaves from J. floribunda was obtained and its chemical composition was determined by UHPLC-MS associated with molecular network allowing the annotation of flavonoids, sesquiterpene lactones, coumarins, and chlorogenic acid derivatives. Besides, in vitro elastase activity assay was carried out with the infusion. As observed, elastase was inhibited at concentrations ranging from 15 to 240 µg/mL, reaching to 71% of inhibition at the maximum of evaluated concentration. Given that species of plants are promising sources for the discovery of new drugs, these results corroborate the infusion of J. floribunda as a potential source of bioactive compounds for the discovery of new inhibitors for elastase, besides its ethnopharmacological aspects.

15.
Vínculo ; 20(2): 107-115, 20230000.
Artigo em Português | LILACS | ID: biblio-1532528

RESUMO

Grupos psicoterapêuticos encontram crescente receptividade nos serviços públicos e privados de saúde. Eles conjugam a expansão da capacidade de atendimento com atuação clínica crítica e propositiva frente ao individualismo da sociedade contemporânea. É importante assim pensarmos os desafios da formação dos psicólogos para este trabalho. Este artigo parte de uma dificuldade encontrada por estagiários de 4° e 5° ano do curso de psicologia, na condução de um grupo psicoterapêutico. Coloca-se como objetivo analisar a relação entre um pacto denegativo que obstaculiza o processo terapêutico com as experiências iniciais de atendimento dos estagiários. Aspectos vivenciados serão apresentados e debatidos à luz da teoria. Descreve-se a existência de um pacto denegativo neste grupo, que se opõe ao processo terapêutico dos pacientes e complexifica o desenvolvimento dos estagiários ao desafiar a confiança em suas percepções e associações, dificultando a realização de intervenções. Conclui-se que o pacto denegativo que obstaculiza o grupo se apresenta, a princípio, como um desafio aos estagiários, porém, mediante o apoio na relação entre os estagiários e supervisão é possível transformar este desafio em fonte de aprendizado.


Grupos psicoterapéuticos son cada vez más recibidos en los servicios de salud. Combinan la expansión de la capacidad de servicio con una acción clínica crítica y decidida frente al individualismo de la sociedad contemporánea. Es importante pensar en los desafíos de formar psicólogos para este trabajo. Este artículo se basa en una dificultad que enfrentan los pasantes de 4° y 5° año de psicología al momento de conducir un grupo psicoterapéutico. El objetivo es analizar la relación entre un pacto negativo que obstruye el proceso terapéutico y las experiencias de cuidado de los internos. Se debatirán experiencias y la teoría. Se describe la existencia de un pacto negativo, que se opone al proceso terapéutico de los pacientes e intensifica el desafío de los alumnos al desafiar la confianza en sus percepciones y asociaciones, lo que dificulta la realización de intervenciones. Se concluye que el pacto negativo que obstaculiza al grupo se presenta, en un primer momento, como un reto para los aprendices, sin embargo, a través del apoyo en la relación entre los aprendices y la supervisión es posible transformar este reto en una fuente de aprendizaje.


Psychotherapeutic groups are increasingly employed in health services. They combine the expansion of the service capacity with critical and purposeful clinical action in face of the individualism of contemporary society. It is important to think about the challenges of training psychologists for this work. This article is based on a difficulty encountered by 4th and 5th year psychology students, acting as trainees, when conducting a psychotherapeutic group. The objective is to analyze the relationship between a denegative pact that obstructs the therapeutic process and the trainees' initial clinical experience. This text debates aspects of this practice in light of theory. It describes a denegative pact in this group, which opposes the patients' therapeutic process and intensifies the trainees' challenge by challenging the trust in their perceptions and associations, making it more difficult for them to find spaces to intervene. It concludes that the negative pact that hinders the group presents itself, in principle, as a challenge to the trainees, however, through support in the relationship between the trainees and supervision it is possible to transform this challenge into a source of learning.


Assuntos
Humanos , Psicanálise , Psicoterapia de Grupo
16.
Rev. latinoam. enferm. (Online) ; 31: e3899, ene.-dic. 2023. tab
Artigo em Espanhol | LILACS, BDENF - enfermagem (Brasil) | ID: biblio-1431837

RESUMO

Objetivo: verificar asociaciones entre variables sociodemográficas y factores que facilitan y dificultan la transición de la atención psicológica presencial a la modalidad remota en el primer año de la pandemia de COVID-19. Método: se trata de un estudio analítico, cuantitativo y de corte transversal. Después de la aprobación del Comité de Ética en Investigación, la recolección de datos se realizó mediante la aplicación de un formulario en línea que consta de 55 preguntas. Los datos fueron analizados utilizando técnicas de estadística descriptiva e inferencial. Resultados: la muestra de conveniencia estuvo compuesta por 385 psicólogos brasileños, en su mayoría mujeres (67,01%), jóvenes profesionales con hasta cinco años de actuación después de la graduación (44,16%) y predominio de actividades en la clínica privada. Se encontró que el tiempo de formación entre cinco y 10 años se asoció con una mayor percepción de dificultades y que la experiencia previa con la atención a distancia facilitó la adaptación en la transición de una modalidad a otra. Conclusión: considerando que la teleasistencia puede ser una poderosa herramienta en el escenario de la salud, se sugiere que los temas de la teleasistencia sean incluidos en la agenda de investigación y los contenidos programáticos en los currículos de los cursos de formación en salud.


Objective: to verify associations between sociodemographic variables and factors that facilitate and hinder the transition from face-to-face psychological care to remote mode in the first year of the COVID-19 pandemic. Method: this is an analytical, quantitative, cross-sectional study. After approval by the Research Ethics Committee, data collection was performed by applying an online form consisting of 55 questions. Data were analyzed using descriptive and inferential statistics techniques. Results: the intentional sampling consisted of a total of 385 Brazilian psychologists, mostly women (67.01%), young professionals with up to five years of graduation (44.16%) most of activities in the private clinic. It was found that training time between five and 10 years was associated with a greater perception of difficulties and that previous experience with remote care facilitated adaptation in the transition from one modality to another. Conclusion: considering that call center can be a powerful tool in the health scenario, it is suggested the inclusion of remote care issues in the research agenda and syllabus in the curricula of health training courses.


Objetivo: verificar associações entre variáveis sociodemográficas e fatores facilitadores e dificultadores da transição do atendimento psicológico presencial para a modalidade remota no primeiro ano da pandemia de COVID-19. Método: trata-se de um estudo analítico, quantitativo, de corte transversal. Após aprovação do Comitê de Ética em Pesquisa, a coleta foi realizada mediante aplicação de um formulário online composto por 55 questões. Os dados foram analisados por meio de técnicas de estatística descritiva e inferencial. Resultados: a amostra de conveniência foi composta por 385 psicólogos brasileiros, majoritariamente mulheres (67,01%), jovens profissionais com até cinco anos de ofício após a graduação (44,16%) e com predomínio de atividades na clínica privada. Constatou-se que o tempo de formação entre cinco e 10 anos foi associado com uma maior percepção de dificuldades e que a experiência prévia com atendimento remoto foi facilitadora da adaptação na transição de uma modalidade à outra. Conclusão: considerando que o teleatendimento pode ser uma ferramenta potente no cenário da saúde, sugere-se a inclusão das questões do atendimento remoto na agenda de pesquisa e conteúdos programáticos das grades curriculares dos cursos de formação em saúde.


Assuntos
Humanos , Masculino , Feminino , Psicoterapia , Estudos Transversais , Telemedicina , Acesso à Internet , Teletrabalho , COVID-19/terapia
17.
Phys Rev Lett ; 131(13): 131401, 2023 Sep 29.
Artigo em Inglês | MEDLINE | ID: mdl-37832001

RESUMO

We construct the first four-dimensional multiple black hole solution of general relativity with a positive cosmological constant. The solution consists of two static black holes whose gravitational attraction is balanced by the cosmic expansion. These static binaries provide the first four-dimensional example of nonuniqueness in general relativity without matter.

19.
Phys Rev Lett ; 131(9): 091402, 2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37721835

RESUMO

We show that extremal Kerr black holes are sensitive probes of new physics. Stringy or quantum corrections to general relativity are expected to generate higher-curvature terms in the gravitational action. We show that in the presence of these terms, asymptotically flat extremal rotating black holes have curvature singularities on their horizon. Furthermore, near-extremal black holes can have large yet finite tidal forces for infalling observers. In addition, we consider five-dimensional extremal charged black holes and show that higher-curvature terms can have a large effect on the horizon geometry.

20.
J Funct Biomater ; 14(9)2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37754866

RESUMO

This study aimed to produce Ti-15Nb alloy with a low elastic modulus, verify its biocompatibility, and determine whether the alloy indirectly influences cellular viability and morphology, as well as the development of the osteogenic phenotype in cells cultured for 2, 3, and 7 days derived from rat calvarias. Two heat treatments were performed to modify the mechanical properties of the alloy where the Ti-15Nb alloy was heated to 1000 °C followed by slow (-5 °C/min) (SC) and rapid cooling (RC). The results of structural and microstructural characterization (XRD and optical images) showed that the Ti-15Nb alloy was of the α + ß type, with slow cooling promoting the formation of the α phase and rapid cooling the formation of the ß phase, altering the values for the hardness and elastic modulus. Generally, a more significant amount of the α phase in the Ti-15Nb alloy increased the elastic modulus value but decreased the microhardness value. After the RC treatment, the results demonstrated that the Ti-15Nb alloy did not present cytotoxic effects on the osteogenic cells. In addition, we did not find variations in the cell quantity in the microscopy results that could suggest cell adhesion or proliferation modification.

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