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The global demand for agricultural commodities has driven extensive land conversion to agriculture in Brazil, especially in the MATOPIBA region. This area encompasses the Rio Grande Basin, a major tributary of the São Francisco Basin that is known for expanding intensive irrigated agriculture and hydropower generation. However, recent data reveal declining precipitation and aquifer recharge, potentially exacerbating ongoing water and land conflicts. This study investigates the long-term sustainability of agricultural expansion amid the worsening water scarcity using a system dynamics model. Findings suggest that rising costs and decreasing profits due to irrigation water shortages may hinder the expansion of irrigated land. By 2040, the irrigation demand may remain partly unmet, while downstream flow and baseflow could decrease. Additionally, agricultural expansion will significantly raise energy demand, posing a developmental challenge. We suggest that ensuring the sustainability of the Rio Grande Basin depends on improved water management and exploring alternative energy sources to address existing constraints.
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Using green techniques to convert native starches into nanoparticles is an interesting approach to producing stabilizers for Pickering emulsions, aiming at highly stable emulsions in clean label products. Nanoprecipitation was used to prepare the Pickering starch nanoparticles, while ultrasound technique has been used to modulate the size of these nanoparticles at the same time as the emulsion was developed. Thus, the main objective of this study was to evaluate the stabilizing effect of cassava starch nanoparticles (SNP) produced by the nanoprecipitation technique combined with ultrasound treatment carried out in the presence of water and oil (more hydrophobic physicochemical environment), different from previous studies that carry out the mechanical treatment only in the presence of water. The results showed that the increased ultrasound energy input could reduce particle size (117.58 to 55.75â¯nm) and polydispersity (0.958 to 0.547) in aqueous dispersions. Subsequently, Pickering emulsions stabilized by SNPs showed that increasing emulsification (ultrasonication) time led to smaller droplet sizes and monomodal size distribution. Despite flocculation, long-term ultrasonication (6 and 9â¯min) caused little variation in the droplet size after 7â¯days of storage. The cavitation effects favored the interaction between oil droplets through weak attraction forces and particle sharing, favoring the Pickering stabilization against droplet coalescence. Our results show the potential to use only physical modifications to obtain nanoparticles that can produce coalescence-stable emulsions that are environmentally friendly.
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Emulsiones , Manihot , Nanopartículas , Tamaño de la Partícula , Almidón , Manihot/química , Almidón/química , Emulsiones/química , Nanopartículas/química , Agua/química , Sonicación/métodos , FloculaciónRESUMEN
OBJECTIVE: to assess validity evidence of an educational video on safe sexual activity after acute coronary syndrome. METHOD: study in three phases: video development; content validity analysis by 11 experts; and analysis of validity based on response processes by seven people with coronary disease. The content validity ratio (CVR) was calculated with critical values for the second phase of 0.63 and for the third of 1.0. RESULTS: the video addressed the importance of resuming sexual activity and positions that consume less energy, clinical warning signs, the importance of adhering to treatment and a welcoming environment for sexual practice. A CVR above the critical value was obtained with a total of 4 minutes and 41 seconds. CONCLUSION: the educational video brings together adequate content validity evidence and can be used as a tool for patients after acute coronary syndrome.
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Síndrome Coronario Agudo , Humanos , Masculino , Femenino , Consejo/métodos , Consejo/normas , Grabación en Video/métodos , Persona de Mediana Edad , Conducta Sexual/psicología , Adulto , Educación del Paciente como Asunto/métodos , Educación del Paciente como Asunto/normasRESUMEN
PURPOSE: The aim of the present study was to determine the methodological quality of systematic reviews that evaluated the effectiveness of pentoxifylline and tocopherol (PENTO) in the treatment of osteoradionecrosis of the jaw (ORNJ) and medication-related osteonecrosis of the jaw (MRONJ). METHODS: Searches were performed in Databases including PubMed, Scopus, LILACS, DARE, Cochrane Library, and SIGLE through OpenGrey until March 2024, were evaluated by two independent reviewers to answer the following question: Is the use of PENTO protocol effective in the treatment of ORNJ or for the treatment of MRONJ? RESULTS: A total of 256 articles were initially identified; however, following the use of appropriate inclusion and exclusion criteria, five systematic reviews were identified for detailed analysis. The final study sample comprised 588 patients: 397 patients with ORN and 197 patients with MRONJ who were treated with PENTO. The total recovery of individuals who used the PENTO protocol was 62,2 % for ORN and 100 % for MRONJ, with a follow-up period of 1 month to 10 years. The methodological quality of the studies was assessed using the AMSTAR 2 tool, in which four were of low quality and 1 moderate quality. CONCLUSION: The treatment of ORN and MRONJ with pentoxifylline and tocopherol has shown good results in the studies presented, with a partial or total reduction in bone exposure. However, the low quality of the relevant reports highlights the need for primary and secondary studies with better methodological rigor to reduce bias and provide reassurance for this treatment option.
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In the age of information technology and the additional computational search tools and software available, this systematic review aimed to identify potential therapeutic targets for obesity, evaluated in silico and subsequently validated in vivo. The systematic review was initially guided by the research question "What therapeutic targets have been used in in silico analysis for the treatment of obesity?" and structured based on the acronym PECo (P, problem; E, exposure; Co, context). The systematic review protocol was formulated and registered in PROSPERO (CRD42022353808) in accordance with the Preferred Reporting Items Checklist for Systematic Review and Meta-Analysis Protocols (PRISMA-P), and the PRISMA was followed for the systematic review. The studies were selected according to the eligibility criteria, aligned with PECo, in the following databases: PubMed, ScienceDirect, Scopus, Web of Science, BVS, and EMBASE. The search strategy yielded 1142 articles, from which, based on the evaluation criteria, 12 were included in the systematic review. Only seven these articles allowed the identification of both in silico and in vivo reassessed therapeutic targets. Among these targets, five were exclusively experimental, one was exclusively theoretical, and one of the targets presented an experimental portion and a portion obtained by modeling. The predominant methodology used was molecular docking and the most studied target was Human Pancreatic Lipase (HPL) (n = 4). The lack of methodological details resulted in more than 50% of the papers being categorized with an "unclear risk of bias" across eight out of the eleven evaluated criteria. From the current systematic review, it seems evident that integrating in silico methodologies into studies of potential drug targets for the exploration of new therapeutic agents provides an important tool, given the ongoing challenges in controlling obesity.
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Simulación por Computador , Obesidad , Humanos , Obesidad/tratamiento farmacológico , Obesidad/metabolismo , Animales , Simulación del Acoplamiento Molecular , Fármacos Antiobesidad/farmacología , Fármacos Antiobesidad/uso terapéutico , Lipasa/metabolismo , Lipasa/antagonistas & inhibidores , Terapia Molecular Dirigida/métodosRESUMEN
BACKGROUND: Tuberculosis (TB) remains a significant public health concern, particularly within prison settings, where the confluence of adverse health factors and high-risk behaviors contribute to a heightened risk of transmission. This study delves into the perspectives of medical doctors, regarding the implementation of the 2014 TB protocol in Portugal. METHODS: The study has a qualitative, descriptive design. Individual semi-structured interviews with medical doctors from TB outpatient centers in Porto and Lisbon were used for data collection. For the analysis thematic analysis method was used. RESULTS: The study population comprised 21 medical doctors with the majority being female (61.9%) and 57.1% specializing in pulmonology. The results indicate varied perceptions of the protocol's usefulness, with positive impacts on coordination reported by some participants. Improved communication and evolving collaboration between TB outpatient centers and prisons were highlighted, although challenges in contact tracing and resource constraints were acknowledged. The study also sheds light on the role of nurses in patient education. CONCLUSION: Despite overall positive perceptions, challenges such as sustaining therapy post-symptomatic improvement and delays in diagnostic methods were identified. The findings underscore the importance of continuous collaboration between prisons and TB control programs to address challenges, improve disease control and prevent TB transmission.
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Multiple diagnoses are the rule in Mental Health and alcohol use disorder (AUD) is a psychopathology with many comorbidities, requiring interventions that consider common factors, which means using a transdiagnostic perspective. This study aimed to identify in the scientific literature the main common transdiagnostic factors that link AUD to other psychopathologies in people over 18 years of age. A systematic review of the literature was carried out in the portals of the databases Pubmed, PsychINFO and CAPES. 37 articles were selected for analysis, which resulted in 25 transdiagnostic factors linked to AUD and to several other related disorders and health conditions. The results emphasize the variety of disorders and health conditions related to AUD, which highlights the importance of transdiagnostic factors for these conditions as targets for both scientific research and therapeutic interventions for this population.
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Introdução: Fotobiomodulação corresponde à exposição de tecidos biológicos a baixos níveis de luz vermelha e infravermelha, esta terapia favorece a reabilitação de diferentes tecidos e que pode ser utilizada para a melhora da prática clínica nas diferentes atuações da fisioterapia, como por exemplo, no tratamento dos acometimentos musculoesqueléticos e inflamatórios. Objetivo: Identificar os benefícios da fotobiomodulação empregados na reabilitação de pacientes nas diferentes patologias traumato-ortopédicas. Metodologia:Trata-se de uma revisão integrativa com busca online nas plataformas de dados: Medline e PubMed. Os descritores foram: fotobiomodulação, taumato-ortopedia e reabilitação. As línguas selecionadas foram: Português, Inglês e Espanhol, entre os anos de 2018 a 2022.Resultados:A descrição dos achados nos ensaios clínicos analisados mostra que a terapia de fotobiomodulação apresenta diferentes usos na prática clínica e que seu uso produz efeito analgésico, anti-inflamatório e regenerativo nos distúrbios musculoesqueléticos. Conclusões:De acordo com a revisão dos artigos, pôde-se perceber que a terapia por fotobiomodulação confirma seus benefícios e eficácia, portando, se fazendo positiva na atuação traumato-ortopédica, gerando resultados significativos quando comparada a outros recursos (AU).
Introduction: Photobiomodulationcorresponds to the exposure of biological tissues to low levels of red and infrared light, this therapy favors the rehabilitation of different tissues and can be used to improve clinical practice in different actions of physiotherapy, such as, for example, in the treatment of musculoskeletal and inflammatory disorders. Objective: To identify the benefits of photobiomodulation used in the rehabilitation of patients with different traumato-orthopedic pathologies. Methodology:This is an integrative review with online search on data platforms: Medline and PubMed. The descriptors were: photobiomodulation, thaumato-orthopedics and rehabilitation. The selected languages were: Portuguese, English and Spanish, from 2018 to 2022. Results: The description of the discovers in the analyzed clinical trials shows that photobiomodulation therapy has different uses in clinical practice and that its use produces analgesic, anti-inflammatory and regenerative effects in musculoskeletal disorders. Conclusions:According to the review of the articles, it could be seen that photobiomodulation therapy confirms its benefits and effectiveness, therefore, becoming positive in the trauma-orthopedic performance, generating significant results when compared to other resources (AU).
Introducción: La fotobiomodulacióncorresponde a la exposición de tejidos biológicos a bajos niveles de luz roja e infrarroja, esta terapia estimula la rehabilitación de diferentes tejidos y puede ser utilizada para mejorar la práctica clínica en diferentes áreas de fisioterapia, como por ejemplo, en tratamiento de Trastornos musculoesqueléticos e inflamatorios. Objetivo: Identificar los beneficios de la fotobiomodulación utilizada en la rehabilitación de pacientes con diferentes patologías traumato-ortopédicas. Metodología: Esta es una revisión integradora con búsqueda en línea en plataformas de datos: Medline y PubMed. Los descriptores fueron: fotobiomodulación, taumato-ortopedia y rehabilitación. Los idiomas seleccionados fueron: portugués, inglés y español, entre los años 2018 a 2022. Resultados: La descripción de los hallazgos en los ensayos clínicos analizados muestra que la terapia de fotobiomodulación tiene diferentes usos en la práctica clínica y que su uso produce efectos analgésicos, antiinflamatorios y regenerador en trastornos musculoesqueléticos. Conclusiones: De acuerdo con la revisión de los artículos, se pudo apreciar que la terapia de fotobiomodulación confirma sus beneficios y efectividad, por lo tanto, tornándose positiva en el desempeño trauma-ortopédico, generando resultados significativos cuando se compara con otros recursos (AU).
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Humanos , Patología , Rehabilitación , Traumatología , Terapia por Luz de Baja Intensidad/instrumentación , Adherencias TisularesRESUMEN
Introdução: O período de internação os pacientes passam por um longo período de imobilização no leito, acompanhada de complicações e comorbidades que podem ocorrer no período pós-operatório. A fisioterapia aturará prevenindo os efeitos da imobilidade no leito, além de melhorar a independência funcional do paciente. Objetivo: Diante o exposto, o objetivo desse estudo é analisar as repercussões clínicas e funcionais da reabilitação precoce em pacientes submetidos à cirurgia torácica. Metodologia: Trata-se de uma revisão integrativa. Critérios de inclusão: ensaios clínicos randomizados, artigos completos, dos idiomas português, inglês e espanhol, publicados entre 2012 e 2022. Critérios de exclusão: protocolos de ensaios, ensaios não finalizados, estudos inferiores ao ano de 2012 e outras línguas. Descritores: Cirurgia torácica; Deambulação precoce; Modalidades de Fisioterapia. Com seus respectivos termos na língua inglesa. Resultados: Foram encontrados 51 artigos. Com os critérios estabelecidos foram selecionados 06 artigos. Os estudos dos autores avaliados se mostraram benéficos para a terapia de deambulação precoce combinada e exercícios. Conclusões: Os achados resultam na minimização das alterações de fluxo e volume pulmonar, otimização da mecânica do movimento tóraco-abdominal e aumento da amplitude do movimento dos músculos respiratórios, facilitando a reexpansão pulmonar e melhorando osparâmetros de função pulmonar (AU)>
Introduction: During hospitalization, patients go through a long period of immobilization in bed, accompanied by complications and comorbidities that may occur in the postoperative period. Physical therapy will help prevent the effects of immobility in bed, in addition to improving the patient's functional independence. Objective:Given the above, the objective of this study is to analyze the clinical and functional repercussions of early rehabilitation in patients undergoing thoracic surgery. Methodology:It is a systematic review. Inclusion criteria: randomized clinical trials, complete articles, in Portuguese, English and Spanish, published between 2012 and 2022. Exclusion criteria: trial protocols, unfinished trials, studies smaller than 2012 in other languages. Descriptors: Thoracic surgery; Early ambulation; Physiotherapy modalities. Results:51 articles were found. With the established criteria, 06 articles were selected. The evaluated authors' studies have shown benefit for combined early ambulation therapy and exercise. Conclusions:The findings result in the minimization of changes in lung flow and volume, optimization of the mechanics of thoracoabdominal movement and increased range of motion of the respiratory muscles, facilitating lung re-expansion and improving lung function parameters (AU).
Introducción: A lo largo de la hospitalización, los pacientes pasan por un largo período de inmovilización en cama, acompañado de complicacionesy comorbilidades que pueden presentarse en el postoperatorio. La fisioterapia ayudará a prevenir los efectos de la inmovilidad en cama, además de mejorar la independencia funcional del paciente. Objetivo:Teniendo en cuenta lo anterior, el objetivo de este estudio es analizar las repercusiones clínicas y funcionales de la rehabilitación temprana en pacientes sometidos a cirugía torácica.Metodología: Esta es una revisión sistemática. Criterios de inclusión: ensayos clínicos aleatorizados, artículos completos, en portugués, inglés y español, publicados entre 2012 y 2022. Criterios de exclusión: protocolos de ensayos, ensayos inconclusos, estudios menores a 2012 y otros idiomas. Descriptores: Cirugía torácica; Deambulación temprana; Modalidades de fisioterapia. Con sus respectivos términosen inglés.Resultados: Se encontraron 51 artículos. Fueron seleccionados 06 artículos, con los criterios establecidos. Los estudios de los autores evaluados han demostrado beneficios para la combinación de terapia de deambulación temprana y ejercicio.Conclusiones: Los hallazgos resultan en la minimización de alteraciones en el flujo y volumen pulmonar, optimización de la mecánica del movimiento toracoabdominal y aumento en el rango de movimiento de los músculos respiratorios, facilitando la reexpansión pulmonar y mejorando los parámetrosde la función pulmonar (AU).
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Humanos , Cirugía Torácica , Modalidades de Fisioterapia , Ambulación Precoz , Cambio SocialRESUMEN
BACKGROUND: Although scleroatrophic gallbladder is a rare condition, it presents significant clinical challenges in diagnosis and management. More agreement is needed on this disorder's diagnostic criteria and optimal management approach. We will conduct a systematic review to summarise the scleroatrophic gallbladder's preoperative diagnostic criteria, including imaging modalities. METHODS: A systematic review will be undertaken using the PRISMA guidelines. The protocol has been registered in PROSPERO (CRD42024503701). We will search in Medline (via PubMed), Embase, SCOPUS, the Cochrane Library, and Web of Science to find original studies reporting about scleroatrophic gallbladder or synonymous. Two reviewers will independently screen the titles and abstracts following the eligibility criteria. We will include all types of studies that describe any diagnostic criteria or tools. After retrieving the full text of the selected studies, we will conduct a standardised data extraction. Finally, a narrative synthesis will be performed. The quality of the identified studies will be assessed using the Quality Assessment of Diagnostic Accuracy Studies- 2 tool. DISCUSSION: This systematic review will provide information on the preoperative diagnostic criteria of the scleroatrophic gallbladder and the value of imaging studies in its diagnosis. In addition, this work will aid doctors in the decision-making process for diagnosing scleroatrophic gallbladder and propose treatment approaches to this condition. SYSTEMATIC REVIEW REGISTRATION: The protocol has been registered in PROSPERO (CRD42024503701).
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Enfermedades de la Vesícula Biliar , Vesícula Biliar , Revisiones Sistemáticas como Asunto , Humanos , Vesícula Biliar/diagnóstico por imagen , Vesícula Biliar/cirugía , Vesícula Biliar/patología , Enfermedades de la Vesícula Biliar/diagnóstico , Enfermedades de la Vesícula Biliar/cirugía , Enfermedades de la Vesícula Biliar/diagnóstico por imagen , Cuidados Preoperatorios , Periodo PreoperatorioRESUMEN
This paper takes a terminological approach to the concept of high intellectual abilities, highlighting the distinctive aspects of the way it is addressed in the Portuguese educational context. It outlines the existing conceptual differentiation in the field of higher abilities, emphasizing how the main characteristics are described and including the strengths and weaknesses of current teaching and learning processes in Portugal. As we will show, educational work with these students in Portuguese schools is characterized by unequal regulation compared to other educational needs, by an imbalance of educational processes aimed at these gifted students, and by clear underdiagnosis that sometimes leads to them being ignored in the classroom, with the consequent harm that this can cause to their overall development and to their academic and professional careers. The paper emphasizes the importance of teacher training in Portugal as an aspect that could be key to reversing, as far as possible, this gap in educational processes-which currently include educational inclusion for all their students as part of the key action principles in the Portuguese educational system.
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BACKGROUND: Bleeding in the upper airways is an important cause of airway-related death. A higher incidence of airway management failure and complications after intubation attempts in the emergency department (ED) had been suggested. Airway management of patients with active oropharyngeal hemorrhage may be challenging, leading the clinician to modify the approach. CASE REPORT: A 57-year-old woman presented to the ED with oropharyngeal hemorrhage after an extensive invasive dental procedure. She was on long-term warfarin therapy due to aortic and mitral valve replacement, which she suspended 5 days prior and restarted the day after the procedure. Besides the active bleeding, swelling, and hematoma of the face, the patient had other signs of "difficult airway," so there were serious questions on when and how to manage the airway. Several strategies to address the airway were considered, the main point being an early versus later intubation. As the patient remained clinically stable, she was conservatively managed with local hemostasis and coagulopathy reversal. The patient was transferred to the intensive care unit, where she remained stable and was successfully discharged after restart on warfarin. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: When faced with an oropharyngeal hemorrhage, emergency physicians may be compelled to secure and protect the airway. This could be achieved by planning several strategies. Nevertheless, in selected patients, and considering the circumstances, not addressing the airway is a reasonable and justifiable alternative.
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Hemorragia , Warfarina , Femenino , Humanos , Persona de Mediana Edad , Warfarina/uso terapéutico , Hemorragia/etiología , Hemorragia/terapia , Manejo de la Vía Aérea/métodos , Hematoma , Intubación , Intubación Intratraqueal/métodosRESUMEN
The aim of the present study was to investigate the relationship between leptin and adiponectin gene polymorphisms, circulating levels of leptin and adiponectin, adiposity and clinical markers in patients with myelodysplastic syndrome (MDS). This cross-sectional study was conducted with 102 adults and elderly MDS patients and 102 age- and sex-matched controls. Clinical characteristics, co-morbidities, anthropometric data, laboratory evaluation and genetic analysis (polymorphisms -2548G > A/rs7799039 of the LEP gene and +276G > T/rs1501299 of the ADIPOQ gene) were investigated. Serum leptin was higher and adiponectin lower in MDS when compared with controls. There was a significant positive correlation between serum leptin levels and BMI (r = 0·264, P = 0·025), waist circumference (r = 0·235, P = 0·047), body fat percentage (BF %) (r = 0·373, P = 0·001) and the fat mass index (FMI) (r = 0·371, P < 0·001). A lower mean adiponectin was found among patients with high BF %, higher visceral adiposity index and metabolic syndrome. A significant association was found between the AA genotype (mutant) of the LEP polymorphism rs7799039 and male sex and blast excess (≥ 5 %). In addition, a significant association was observed between the TT genotype (mutant) of the ADIPOQ rs1501299 polymorphism and Fe overload. These results demonstrate the importance of a comprehensive and systematic evaluation in patients with MDS in order to identify and control negative factors not related to the disease at an early stage.
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Leptina , Síndromes Mielodisplásicos , Adulto , Anciano , Humanos , Masculino , Adipoquinas , Adiponectina/genética , Adiposidad/genética , Estudios Transversales , Leptina/genética , Síndromes Mielodisplásicos/genética , Síndromes Mielodisplásicos/complicaciones , Obesidad/complicaciones , Polimorfismo de Nucleótido SimpleRESUMEN
OBJECTIVE: The aim of the present study was to evaluate clinical and embryo parameters to predict embryo ploidy. METHODS: In this retrospective analysis, we studied 838 biopsied day-5 blastocysts from 219 patients in the period from May 2021 to July 2022. All embryos were morphologically classified before biopsy and were divided into two groups according to genetic test results. Euploid embryos (299) were compared with aneuploid embryos (539) based on maternal age, anti-Mullerian hormone, antral follicle count, and embryo morphology. RESULTS: Maternal age (36.2±3.0) of euploid embryos was lower than maternal age (37.1±2.5) of aneuploid embryos (p<0.0001). AMH levels were higher (3.9±1.2) in the group of euploid embryos than in the group of aneuploid embryos (3.6±1.3, p<0.0001). However, the AFC was not different in the group of euploid embryos (15.3±6.0) compared to the group of aneuploid embryos (14.5±5.9, p=0.07). The presence of aneuploidy was negatively correlated with top embryo quality (embryos 4AA and 4AB). All euploid embryos (299) were top quality versus 331 of 539 (61.49%) aneuploid embryos (p<0.0001). CONCLUSIONS: We found that euploid embryos were associated with lower maternal age, higher AMH levels, and higher quality embryos.
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Diagnóstico Preimplantación , Embarazo , Femenino , Humanos , Diagnóstico Preimplantación/métodos , Estudios Retrospectivos , Edad Materna , Blastocisto , AneuploidiaRESUMEN
Aim: Hyposalivation and dry mouth affect the quality of life in patients with Head and Neck Cancer, who did the treatment with radiotherapy. Thus this study has the objective to evaluate the dosimetric relationship between 3D radiotherapy and changes in salivary flow, xerostomia and quality of life in patients with head and neck cancer according to the volume of the irradiated parotid gland. Methods: 23 patients with cancer in the head and neck area and in need of 3D radiotherapy were followed up during radiotherapy treatment, and the parotid gland (PG) design was also performed in radiotherapy planning. Questionnaires were carried out to determine xerostomia and quality of life, while the salivary flow was determined through calculations regarding the collection and weighing of saliva. Such data were collected in three moments: before the beginning of the radiotherapy treatment (D0), in the middle of the treatment (D1) and at the end of it (D2). The numerical variables are represented by measures of central tendency and measures of dispersion. Results: when associating the salivary flow, the xerostomia questionnaire and the OHIP-14, a statistically significant difference was found (p-value <0.001), as well as when comparing some volumes of irradiated PG with the OHIP-14. However, no relationship was found between dosimetric data, xerostomia and hyposalivation. Conclusion: patients undergoing 3D radiotherapy for malignant neoplasms in the head and neck region had decreased salivary flow, increased complaints of dry mouth and decreased quality of life. However, it was not possible to establish a statistically significant correlation between these findings and the volumes of irradiated parotids
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Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Anciano , Glándula Parótida , Calidad de Vida , Radioterapia , Xerostomía , Neoplasias de Cabeza y CuelloRESUMEN
Tropical deforestation impacts the climate through complex land-atmosphere interactions causing local and regional warming. However, whilst the impacts of deforestation on local temperature are well understood, the regional (nonlocal) response is poorly quantified. Here, we used remote-sensed observations of forest loss and dry season land-surface temperature during the period 2001 to 2020 to demonstrate that deforestation of the Amazon caused strong warming at distances up to 100 km away from the forest loss. We apply a machine learning approach to show nonlocal warming due to forest loss at 2-100 km length scales increases the warming due to deforestation by more than a factor 4, from 0.16 K to 0.71 K for each 10-percentage points of forest loss. We estimate that rapid future deforestation under a strong inequality scenario could cause dry season warming of 0.96 K across Mato Grosso state in southern Brazil over the period 2020 to 2050. Reducing deforestation could reduce future warming caused by forest loss to 0.4 K. Our results demonstrate the contribution of tropical deforestation to regional climate warming and the potential for reduced deforestation to deliver regional climate adaptation and resilience with important implications for sustainable management of the Amazon.
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Conservación de los Recursos Naturales , Árboles , Bosques , Clima , Estaciones del Año , BrasilRESUMEN
INTRODUCTION: The COVID-19 pandemic is an illustration of how a physical illness can damage people's minds. In this regard, the goal of this study was to see how different sociodemographic and behavioral factors were linked to anxiety and depression symptoms in a group of individuals living in Portugal. METHODS: Between November 2020 and February 2021, a cross-sectional, snowball online study was conducted. The study's target population was adults over the age of 18, residents of the country. For the statistical analysis, the clustering technique - K-means algorithm was applied. The chi-squared test was used to determine the relationships between clusters and sociodemographic and behavioral characteristics. Statistical analyses were conducted in R language, with a significance level of 0.05. A total of 453 participants were included. RESULTS: The majority were female (69.8%), under the age of 40 (60.8%), with a higher education degree (75.3%), and not married (54.4%). Furthermore, the majority were from the country's north region (66%). Cluster 1 (n = 194) was characterized by low or nonexistent levels of anxiety and depression symptoms, which means normal; cluster 2 by severe symptoms (n = 82), meaning case; and cluster 3 by mild symptoms (n = 177), which means borderline. Younger participants (p-value 0.024), female (p-value 0.041), with drinking habits (p-value 0.002), food insecurity (p-value < 0.001), food affordability exacerbation (p-value < 0.001), comorbidity (p-value < 0.001), use of anxiolytics (p-value < 0.001), insufficient household income (p-value 0.017) and income change (p-value < 0.001) were significantly associated with the anxiety-depression clusters. From the three clusters, cluster 2 was mainly represented by younger participants, with more persons stating that their household income was insufficient and that their income has changed as a result of COVID-19 and that they had the highest probability of food insecurity. CONCLUSION: The impacts of a crisis on mental health extend longer than the event itself. We were able to observe that younger women with insufficient household income who suffered a change in income due to COVID-19 and were classified as food insecure presented higher levels of anxiety and depression symptoms. These results highlight the presence of a social gradient where we saw that people who were less advantaged in terms of socioeconomic position presented worse mental health outcomes, stressing, in this sense, the need to bring the best public health responses for these specific groups of the population.
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COVID-19 , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , COVID-19/epidemiología , Depresión/epidemiología , Depresión/etiología , Portugal/epidemiología , Estudios Transversales , Pandemias , Ansiedad/epidemiología , Ansiedad/etiologíaRESUMEN
As the monitoring of carbon dioxide is an important proxy to estimate the air quality of indoor and outdoor environments, it is essential to obtain trustful data from CO2 sensors. However, the use of widely available low-cost sensors may imply lower data quality, especially regarding accuracy. This paper proposes a new approach for enhancing the accuracy of low-cost CO2 sensors using an extremely randomized trees algorithm. It also reports the results obtained from experimental data collected from sensors that were exposed to both indoor and outdoor environments. The indoor experimental set was composed of two metal oxide semiconductors (MOS) and two non-dispersive infrared (NDIR) sensors next to a reference sensor for carbon dioxide and independent sensors for air temperature and relative humidity. The outdoor experimental exposure analysis was performed using a third-party dataset which fit into our goals: the work consisted of fourteen stations using low-cost NDIR sensors geographically spread around reference stations. One calibration model was trained for each sensor unit separately, and, in the indoor experiment, it managed to reduce the mean absolute error (MAE) of NDIR sensors by up to 90%, reach very good linearity with MOS sensors in the indoor experiment (r2 value of 0.994), and reduce the MAE by up to 98% in the outdoor dataset. We have found in the outdoor dataset analysis that the exposure time of the sensor itself may be considered by the algorithm to achieve better accuracy. We also observed that even a relatively small amount of data may provide enough information to perform a useful calibration if they contain enough data variety. We conclude that the proper use of machine learning algorithms on sensor readings can be very effective to obtain higher data quality from low-cost gas sensors either indoors or outdoors, regardless of the sensor technology.
Asunto(s)
Contaminantes Atmosféricos , Contaminación del Aire , Dióxido de Carbono/análisis , Calibración , Monitoreo del Ambiente/métodos , Contaminación del Aire/análisis , Óxidos , Algoritmos , Contaminantes Atmosféricos/análisisRESUMEN
Capsiate and phenolics present in the free, esterified, glycosylated, and insoluble-bound forms of BRS Moema peppers were characterized and quantified using UHPLC-ESI-MS/MS. Additionally, the in vitro antiproliferative activity of BRS Moema extract was evaluated. The peppers showed considerable quantities of capsiate and phenolic compounds. Esterified phenolics were the main fraction, followed by the insoluble-bound fraction, indicating that relying solely on the extraction of soluble phenolics may underestimate the total phenolic content. Among the fourteen phenolics identified in extract fractions, gallic acid was the major constituent. Phenolic fractions displayed high antioxidant capacity by TEAC and ORAC assays. Nevertheless, the correlation between phenolic compounds and antioxidant activity suggested that other bioactive or phenolic compounds may contribute to the overall phenolic compounds and antioxidant capacity of the obtained fractions. Concerning the antiproliferative activity, the extract did not exhibit any effect on cell proliferation within the evaluated concentration range. These findings indicated that BRS Moema peppers can serve as a rich source of phenolic compounds. Therefore, fully utilizing them could bring advantages to the food and pharmaceutical industries, as well as to consumers and producers.