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The recently proposed nonadditive stochastic model (NSM) offers a coherent physical interpretation for diffusive phenomena in glass-forming systems. This model presents nonexponential relationships between viscosity, activation energy, and temperature, characterizing the non-Arrhenius behavior observed in supercooled liquids. In this work, we fit the NSM viscosity equation to experimental temperature-dependent viscosity data corresponding to 25 glass-forming liquids and compare the fit parameters with those obtained using the Vogel-Fulcher-Tammann (VFT), Avramov-Milchev (AM), and Mauro-Yue-Ellison-Gupta-Allan (MYEGA) models. The results demonstrate that the NSM provides an effective fitting equation for modeling viscosity experimental data in comparison with other established models (VFT, AM, and MYEGA), characterizing the activation energy in fragile liquids, presenting a reliable indicator of the degree of fragility of the glass-forming liquids.

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The design of complex health systems interventions, such as pay for performance (P4P), can be critical to determining such programmes' success. In P4P programmes, the design of financial incentives is crucial in shaping how these programmes work. However, the design of such schemes is usually homogenous across providers within a given scheme. Consequently, there is a limited understanding of the strengths and weaknesses of P4P design elements from the implementers' perspective. This study takes advantage of the unique context of Brazil, where municipalities adapted the federal incentive design, resulting in variations in incentive design across municipalities. The study aims to understand why municipalities in Brazil chose certain P4P design features, the associated challenges and the local adaptations made to address problems in scheme design. This study was a multiple case study design relying on qualitative data from 20 municipalities from two states in Northeastern Brazil. We conducted two key informant interviews with municipal-level stakeholders and focus group discussions with primary care providers. We also reviewed municipal Primary Care Access and Quality laws in each municipality. We found substantial variation in the design choices made by municipalities regarding 'who was incentivized', the 'payment size' and 'frequency'. Design choices affected relationships within municipalities and within teams. Challenges were chiefly associated with fairness relating to 'who received the incentive', 'what is incentivized' and the 'incentive size'. Adaptations were made to improve fairness, mostly in response to pressure from the healthcare workers. The significant variation in design choices across municipalities and providers' response to them highlights the importance of considering local context in the design and implementation of P4P schemes and ensuring flexibility to accommodate local preferences and emerging needs. Attention is needed to ensure that the choice of 'who is incentivized' and the 'size of incentives' are inclusive and fair and the allocation and 'use of funds' are transparent.

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Studies reporting the expression of hepatitis A virus (HAV) structural proteins, specifically recombinant VP1-2A containing an immunogenic activity, use the Escherichia coli system. Recombinant HAV proteins may represent a source of less expensive antigens for application in different diagnostic platforms. However, the formation of insoluble aggregates is an obstacle to obtaining large amounts of HAV proteins in their native form. To overcome this obstacle, some approaches were applied in this study to improve purification, solubility, and protein expression levels. Critical properties were evaluated. The introduction of another insertion codon to increase the protein concentration and vector activity was observed and verified by SDS-PAGE. The expression was established with 0.4 mM IPTG for 4 h at 37 °C. The VP1 protein was partially soluble at an isoeletric point (pI) of 6.45. The majority of HAV VP1-2A proteins measured 45.19 kDa in size and had a homogeneity of 53.58%. Multi-antigen print immunoassay (MAPIA) showed antigenicity at different HAV VP1-2A concentrations, and microsphere-based immunoassays showed a specificity of 100% and a sensitivity of 84%. HAV VP1-2A was characterized using different sensitivity methods to prove its biological activity, indicating its use as a tool for the diagnosis of Hepatitis A virus infection.

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O estudo buscou compreender a influência da estratégia do Pay for Performance (P4P), por meio do Programa Nacional de Melhoria do Acesso e Qualidade da Atenção Básica (PMAQ-AB), na atuação do(a)s trabalhadore(a)s. Trata-se de um estudo de caso qualitativo realizado com o(a)s trabalhadore(a)s das Estratégias de Saúde da Família. A análise foi realizada mediante a técnica de construção de narrativas. Constatou-se que o P4P contribuiu para qualificação do processo de trabalho, ao mesmo tempo que estimulou competição e conflito entre as equipes, aflorando sentimentos de culpa e injustiça e, devido à precarização do trabalho, o estímulo financeiro se descaracteriza, tornando-se complemento salarial. Problemas macroestruturais afetam as condições de trabalho e a motivação do(a)s trabalhadore(a)s, de modo que modelos de incentivo financeiro, isoladamente, não são suficientes para reverter tal cenário.(AU)

This study sought to understand the influence of pay-for-performance (P4P) on worker performance using data from the National Program for Improving Primary Care Access and Quality (PMAQ-AB). We conducted a qualitative case study with professionals working in family health strategy teams. The data were analyzed using the narrative construction technique. The findings show that P4P contributed to the improvement of work processes, while at the same time stimulating competition and conflict between the teams, causing feelings of guilt and injustice. However, the original purpose of the financial incentive is defeated due to poor working terms and conditions, becoming akin to a salary supplement. Macrostructural problems affect working conditions and worker motivation, showing that financial incentive models alone are not sufficient to reverse this situation.(AU)

El estudio buscó comprender la influencia de la estrategia Pay for Performance (P4P), por medio del Programa de Mejora del Acceso y Calidad de la Atención Básica (Pmaq-AB), en la actuación de los trabajadores y las trabajadoras. Se trata de un estudio de caso, cualitativo, realizado con los trabajadores y las trabajadoras de las Estrategias de Salud de la Familia. El análisis se realizó mediante la construcción de narrativas. Se constató que el P4P contribuyó para la calificación del proceso de trabajo, al mismo tiempo que incentivó competencia y conflicto entre los equipos, haciendo aflorar los sentimientos de culpa e injusticia y, debido a la precarización del trabajo, el incentivo financiero se descaracteriza pasando a ser complemento salarial. Problemas macroestructurales afectan las condiciones de trabajo y la motivación de los trabajadores y de las trabajadoras, de modo que los modelos de incentivo económico, aisladamente, no son suficientes para revertir ese escenario.(AU)

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Mucosal vaccination appears to be suitable to protect against SARS-CoV-2 infection. In this study, we tested an intranasal mucosal vaccine candidate for COVID-19 that consisted of a cationic liposome containing a trimeric SARS-CoV-2 spike protein and CpG-ODNs, a Toll-like receptor 9 agonist, as an adjuvant. In vitro and in vivo experiments indicated the absence of toxicity following the intranasal administration of this vaccine formulation. First, we found that subcutaneous or intranasal vaccination protected hACE-2 transgenic mice from infection with the wild-type (Wuhan) SARS-CoV-2 strain, as shown by weight loss and mortality indicators. However, when compared with subcutaneous administration, the intranasal route was more effective in the pulmonary clearance of the virus and induced higher neutralizing antibodies and anti-S IgA titers. In addition, the intranasal vaccination afforded protection against gamma, delta, and omicron virus variants of concern. Furthermore, the intranasal vaccine formulation was superior to intramuscular vaccination with a recombinant, replication-deficient chimpanzee adenovirus vector encoding the SARS-CoV-2 spike glycoprotein (Oxford/AstraZeneca) in terms of virus lung clearance and production of neutralizing antibodies in serum and bronchial alveolar lavage (BAL). Finally, the intranasal liposomal formulation boosted heterologous immunity induced by previous intramuscular vaccination with the Oxford/AstraZeneca vaccine, which was more robust than homologous immunity.

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Pay-for-performance (P4P) has been widely applied in OECD countries to improve the quality of both primary and secondary care, and is increasingly being implemented in low- and middle-income countries. In 2011, Brazil introduced one of the largest P4P schemes in the world, the National Programme for Improving Primary Care Access and Quality (PMAQ). We critically assess the design of PMAQ, drawing on a comparison with England's quality and outcome framework which, like PMAQ, was implemented at scale relatively rapidly within a nationalised health system. A key feature of PMAQ was that payment was based on the performance of primary care teams but rewards were given to municipalities, who had autonomy in how the funds could be used. This meant the incentives felt by family health teams were contingent on municipality decisions on whether to pass the funds on as bonuses and the basis upon which they allocated the funds between and within teams. Compared with England's P4P scheme, performance measurement under PMAQ focused more on structural rather than process quality of care, relied on many more indicators, and was less regular. While PMAQ represented an important new funding stream for primary health care, our review suggests that theoretical incentives generated were unclear and could have been better structured to direct health providers towards improvements in quality of care.

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This study aimed to describe the epidemiological indexes of mastitis, milk quality and udder hygiene in the Compost Barn system, as well as to search for associations between isolated pathogens from milk with compost characteristics. Three dairy herds participated in the study, and the samples were collected during different periods on each farm. Individual milk samples were collected in duplicate for SCC analysis and microbiological culture. Environmental pathogens caused most cases of clinical mastitis on farm 2, and contagious pathogens caused the most cases on farm 1. Bed moisture was not associated with the incidence of environmental pathogens. Most of the animals remained in good udder hygiene during the study. Poor udder hygiene contributed to the increased incidence of environmental pathogens in one of the farms. A higher number of animals with a hygiene score of ≥ 2 were observed during the warmer and rainfall periods. There was no association between hygiene scores and somatic cell counts. The results suggest that pathogens isolated from milk in animals confined in Compost Barn under tropical climate are like other confinement systems adopted elsewhere. The year period influenced the udder hygiene score, reinforcing the importance of bed management throughout the year.

O objetivo deste estudo foi descrever os índices epidemiológicos da mastite, da qualidade do leite e da higiene do úbere em animais confinados no sistema Compost Barn, bem como buscar associações entre patógenos isolados do leite e características do composto. Três rebanhos leiteiros participaram do estudo e as amostras foram coletadas em diferentes períodos em cada fazenda. Amostras individuais de leite foram coletadas em duplicata para análise de CCS e cultura microbiológica. Patógenos ambientais causaram a maioria dos casos de mastite clínica na fazenda 2, e na fazenda 1 a maioria dos casos foi em decorrência de patógenos contagiosos. Amostras de material da cama foram coletadas em duas fazendas para análise da densidade bacteriana e da umidade. A umidade da cama permaneceu dentro da faixa de controle durante o estudo e não foi associada à incidência de patógenos ambientais. A maioria dos animais permaneceu com boa higiene de úbere durante o estudo. A falta de higiene do úbere contribuiu para o aumento da incidência de patógenos ambientais em uma das fazendas. Durante o período mais quente e mais chuvoso, um número maior de animais com escore de sujidade ≥2 foi observado em todos os rebanhos. Não houve associação entre escore de sujidade e contagem de células somáticas em qualquer uma das três fazendas. Os resultados indicam que o perfil de patógenos isolados do leite em animais confinados em Compost Barn sob clima tropical é semelhante a outros sistemas de confinamento adotados em outros lugares. O período do ano influenciou o escore de higiene do úbere, o que reforça a importância do manejo da cama ao longo do ano.

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Este artigo analisa a execução do PMAQ-AB a partir de sua contextualização em um cenário político nacional de profundas transformações, desde o reformismo fraco que promoveu lenta extensão de direitos até o contrarreformismo forte da restauração neoliberal. Para debater os elementos relacionados ao trabalho e às disputas pela distribuição dos recursos públicos, foi realizado estudo de caso com trabalhadores, gestores e conselheiros de saúde em duas capitais do nordeste brasileiro. Os resultados evidenciam o acirramento do conflito distributivo e o resultado desfavorável aos trabalhadores no contexto pós-golpe parlamentar de 2016. As dinâmicas locais expõem processos de contração salarial e individualização das relações de trabalho e a reafirmação da meritocracia como justificativa ideológica da precarização. A isso, trabalhadores se contrapõem pela reafirmação de sua condição coletiva de classe, em favor de benefícios derivados do PMAQ, como recomposição salarial para todos.(AU)

Este artículo analiza la realización del PMAQ-AB a partir de su contextualización en un escenario político nacional de profundas transformaciones, desde el reformismo débil que promovió una lenta extensión de derechos contra el reformismo fuerte de la restauración neoliberal. Para discutir los elementos relacionados al trabajo y a las disputas por la distribución en los recursos públicos se realizó un estudio de caso con trabajadores, gestores y consejeros de salud en dos capitales del nordeste brasileño. Los resultados ponen en evidencia el recrudecimiento del conflicto distributivo y el resultado desfavorable para los trabajadores en el contexto post-golpe parlamentario de 2016. Las dinámicas locales exponen procesos de contracción salarial e individualización de las relaciones de trabajo y la reafirmación de la meritocracia como justificativa ideológica de la precarización. A eso se contraponen los trabajadores por medio de la reafirmación de su condición colectiva de clase, en favor del beneficio derivado del PMAQ con la recomposición salarial para todos.(AU)

This article analyzes the implementation of the Program for Improving Access and Quality of Primary Care (PMAQ-AB) in the context of a national political scenario of deep transformations, from the weak reformism that promoted slow extension of rights to the strong counter-reformism of neoliberal restoration. It is a case study with health workers, managers, and counselors in two capital cities in northeastern Brazil, discussing matters of work and distributive disputes of public resources. Results show the intensification of these conflicts in health and the unfavorable outcome for workers after the parliamentary coup in 2016 political context. Local dynamics expose the wage contraction and individualization of labor relations and the reassertion of meritocracy as an ideological ground for precariousness. Workers oppose this, reaffirming their collective class condition, favoring the benefit derived from PMAQ for fully regaining their group wages.(AU)