PLACA ESTABILIZADORA MISTA PARA CONTROLE DO BRUXISMO SEGUNDO O PROTOCOLO ESTABELECIDO PELO PROJETO PLACA SOCIAL

The present work sought to understand about bruxism, which is defined as squeezing and grinding teeth, focusing on treatment by occlusal plaque. Many methods have been suggested for making this type of plate, however, each one has its advantages, as well as limitations, and should be chosen according to the clinical situation and patient's expectations. Given these facts, this work aims to review the literature based on scientific evidence about the concepts of bruxism, in addition to presenting a technique for making a low-cost interocclusal device to control bruxism. For this, the methodology was through a review of narrative literature with the exploratory method. Concluding that the mixed occlusal plates favor the protection of teeth, muscles and joints, protecting their masticatory structures, being considered conservative, reversible, of low cost, easy to manufacture and well indicated for patients who suffer from bruxism.El presente trabajo buscó comprender sobre el bruxismo, el cual se define como apretar y rechinar los dientes, enfocándose en el tratamiento por placa oclusal. Se han sugerido muchos métodos para realizar este tipo de placa, sin embargo, cada uno tiene sus ventajas, así como sus limitaciones, y deben elegirse de acuerdo con la situación clínica y las expectativas del paciente. Ante estos hechos, este trabajo tiene como objetivo revisar la literatura basada en evidencia científica sobre los conceptos de bruxismo, además de presentar una técnica para la fabricación de un dispositivo interoclusal de bajo costo para el control del bruxismo. Para ello, la metodología fue a través de una revisión de la literatura narrativa con el método exploratorio. Concluyendo que las placas oclusales mixtas favorecen la protección de dientes, músculos y articulaciones, protegiendo sus estructuras masticatorias, siendo consideradas conservadoras, reversibles, de bajo costo, fáciles de fabricar y bien indicadas para pacientes que padecen bruxismo.O presente trabalho buscou compreender sobre o bruxismo, que se define como apertar e ranger os dentes, com foco no tratamento pela placa oclusal. Muitos métodos têm sido sugeridos para a confecção deste tipo de placa, porém, cada um apresenta suas vantagens, assim como limitações, e devem ser escolhidos de acordo com a situação clínica e expectativa do paciente. Diante destes fatos, este trabalho tem como objetivo revisar a literatura baseada em evidências científicas acerca dos conceitos de bruxismo, além de apresentar uma técnica de confecção de dispositivo interoclusal de baixo custo para controle do bruxismo. Para tanto a metodologia foi através de uma revisão de literatura narrativa com o método exploratório. Concluindo que as placas oclusais mistas favorecem a proteção dentária, muscular e articular, protegendo suas estruturas mastigatórias, sendo consideradas conservadoras, reversíveis, de baixo custo, fácil confecção e bem indicadas para pacientes que sofrem de bruxismo

Valores energéticos e coeficientes de metabolizabilidade de grãos de milho com diferentes densidades específicas

Objetivou-se avaliar a influência da densidade do grão de milho sobre características físico-químicas, valores energéticos e de metabolizabilidade aparente. Avaliou-se a correlação entre a densidade específica (kg/m³) e os parâmetros: proteína bruta (%); extrato etéreo (%); fibra bruta (%); energia bruta (%); presença de fumonisinas (ppb) e aflatoxinas (ppb); umidade (%); grãos bons, quebrados, chochos, carunchados e ardidos, em Percentagem. Um ensaio de metabolismo com dietas contendo diferentes densidades específicas do grão de milho, para frango de corte, no período de 14 a 21 dias de idade, foi conduzido para avaliar a energia metabolizável aparente (EMA) e a corrigida pelo balanço de nitrogênio (EMAn), os coeficientes de metabolizabilidade: matéria seca (CM_MS), proteína bruta (CM_PB), extrato etéreo (CM_EE), cálcio (CM_Ca) e fósforo (CM_P). O experimento foi composto por cinco tratamentos (dieta referência e dietas substituindo 40% desta com milhos de densidades específicas: 740 kg/m³, 760 kg/m³, 780 kg/m³ e 800 kg/m³), com oito repetições, totalizando 400 frangos machos. As médias foram comparadas pelo teste de Scott-knott e estimada as equações de regressão nas diferentes densidades específicas das frações de milho. As correlações entre a densidade específica e grãos bons e quebrados foram de moderada magnitude e com os parâmetros químicos foram de baixa magnitude. Com o aumento da densidade específica para EMA e EMAn na matéria natural obteve-se resposta linear decrescente, enquanto na matéria seca, foi quadrático. Para CMMS, CMPB, CMCA e CMP a densidade de 780 kg/m³ apresentou os menores valores, enquanto para CM_EE, o menor valor foi para a menor densidade específica. Não foi possível determinar a fração de milho com melhor composição nutricional e melhores coeficientes de metabolizabilidade. Palavras-chave: análise bromatológica; correlação; energia metabolizável aparente; regressã

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Effects of crude protein levels on egg quality traits of brown layers raised in two production systems

ABSTRACT The objective of this study was the evaluation of egg quality of 30 to 45-week-old brown layers, raised in cages or on floor, supplemented with amino acids, using the ideal protein concept with levels of 14, 15, 16, and 18% crude protein. A total of 400 birds (Hy-sex Brown) were used, distributed into two breeding systems (conventional cage or floor). The evaluated variables were the yolk relative weight, yolk height, albumen relative weight, albumen height, specific gravity, eggshell thickness, and eggshell weight. Treatments consisted of reduced levels of crude protein and were provided to both groups equally. We adopted a completely randomized design, in a factorial scheme, composed of two breeding systems and four levels of crude protein, totaling eight treatments. Five replicates per treatment and 10 birds per experimental unit were used. The breeding system on floor was configured as an option in the breeding of brown layers, of Hy-sex Brown commercial lineage, in the period between the 30th and the 45th week of age, since it presents results equivalent to the ones obtained in the breeding system in cages, having the egg quality as parameter. The system of production on floor is configured as an option in the farming of brown layers, of the commercial lineage Hy-sex Brown

Caracterização e testes de redução sob atmosfera controlada de pós de aciaria elétrica

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Effects of crude protein levels on egg quality traits of brown layers raised in two production systems

<div><p>ABSTRACT The objective of this study was the evaluation of egg quality of 30 to 45-week-old brown layers, raised in cages or on floor, supplemented with amino acids, using the ideal protein concept with levels of 14, 15, 16, and 18% crude protein. A total of 400 birds (Hy-sex Brown) were used, distributed into two breeding systems (conventional cage or floor). The evaluated variables were the yolk relative weight, yolk height, albumen relative weight, albumen height, specific gravity, eggshell thickness, and eggshell weight. Treatments consisted of reduced levels of crude protein and were provided to both groups equally. We adopted a completely randomized design, in a factorial scheme, composed of two breeding systems and four levels of crude protein, totaling eight treatments. Five replicates per treatment and 10 birds per experimental unit were used. The breeding system on floor was configured as an option in the breeding of brown layers, of Hy-sex Brown commercial lineage, in the period between the 30th and the 45th week of age, since it presents results equivalent to the ones obtained in the breeding system in cages, having the egg quality as parameter. The system of production on floor is configured as an option in the farming of brown layers, of the commercial lineage Hy-sex Brown.</p></div