Abstract Chemical and pharmacological potentials of botanical species found in the Cerrado are well-known and widely studied. Chemical diversity of secondary metabolites produced by plants that belong to this Brazilian biome has triggered several studies in the fields of farming, pharmaceutical and cosmetic industries. Therefore, this study aimed at evaluating the chemical composition of essential oils (EOs) from fresh leaves of three species found in the Brazilian Cerrado: Cardiopetalum calophyllum Schltdl. (EO-CC), Campomanesia adamantium (Cambess.) O. Berg (EO-CA) and Protium ovatum Engl. (EO-PO) and at determining their anti-Malassezia furfur and anti-inflammatory activities. Both GC-FID and GC-MS showed that the most abundant chemical class of the oils was the one of sesquiterpene hydrocarbons. The major constituents identified in EO-CC were germacrene D (34.9%) and bicyclogermacrene (26.8%). EO-CA exhibited mainly germacrene D (21.7%) while EO-PO had high concentrations of germacrene D (25.0%) and γ-muurolene (18.6%). EOs were tested by the broth microdilution method on 96-well microplates and exhibited satisfactory activity against M. furfur, i. e., EO-CA had MIC = 375 µg/mL while EO-CC and EO-PO had MIC = 750 µg/mL. The chemotaxis model, which was used for evaluating their anti-inflammatory activity, showed that EOs exhibited effective results: C. calophyllum (EO-CC; IC50 = 24.4 µg/mL), C. adamantium (EO-CA; IC50 = 15.7 µg/mL) and P. ovatum (EO-PO; IC50 = 32.5 µg/mL). In short, biological activities of EO-CC, EO-CA and EO-PO, such as anti-Malassezia furfur and anti-inflammatory ones, were investigated and described for the first time.

Abstract This study aimed to evaluate the air and water contamination level and to identify the microbes isolated from a rodent facility located at the Federal University of Uberlândia, Minas Gerais, Brazil. Colony forming units (CFU) per milliliter was used for monitoring water quantitatively; CFU per cubic meter was used for air monitoring. The isolated colonies were identified for qualitative monitoring. Due to absence of specific parameters for these facilities, the results were analyzed according to Brazilian and international standards, depending on which best suited each sample. The mean total number of microorganisms in water ranged from 0.015 ± 0.02 to 0.999 ± 0.91 CFU/mL. The number of microorganisms in air ranged from 9.1 ± 4.6 to 351.56 ± 158.2 CFU/m³. Forty-one microorganisms identified in the samples obtained from the rodent facility were potentially pathogenic or opportunistic for animals and humans (e.g., Corynebacterium spp.). We concluded that the water and air samples were contaminated with potentially pathogenic or opportunistic microorganisms that can harm rodents and humans. On the basis of our observations, specific sanitary standards suitable for these facilities should be developed for controlling microbial contamination, which will prevent zoonosis and ensure the reliability of scientific results obtained from animal experiments.

Brazil has the greatest plant diversity in the world. Many species exhibit a wide range of phytochemical compounds which can be exploited in food, agronomic, pharmacological and medicinal plant industries. Therefore, the chemical composition and in vitro bioactivities of volatile oil from Psidium firmum fresh leaves (PfVO) were investigated for the first time. GC-FID and GC-MS analyses revealed 28 compounds in PfVO. The major ones were α-selinene (20.8%), β-caryophyllene (16.5%) and nerolidol (10.4%). Results showed that PfVO affected the growth of Leishmania amazonensis promastigote forms in a dose-dependent manner; its IC50 value was 14.05 µg/mL. PfVO also exhibited antibacterial activity against Salmonella enteritidis, Yersinia enterocolitica, Staphylococcus aureus, Pseudomonas aeruginosa and Listeria monocytogenes; MIC values ranged from 25 μg/mL to 250 μg/mL. Moreover, PfVO promoted normal cell growth inhibition at 61.02 ± 1.97 µg/mL. Antiproliferative activity was observed against human tumor cell lines; IC50 values of MCF-7 cells, HeLa cells and M059J cells were 47.91 µg/mL, 73.78 µg/mL and 41.94 µg/mL, respectively. Results provided strong evidence of the promising potential of PfVO as a nature-based antileishmanial, antibacterial and antiproliferative agent.

RESUMO Este ensaio traz para o debate processos de invisibilização do jovem negro no sistema educacional brasileiro tendo como uma de suas principais consequências a morte simbólica desse sujeito, que contribui para outras formas de morrer no contexto de uma sociedade marcada pelo racismo estrutural. Partimos do conceito de biopolítica, que será potencializado com a contribuição de Achille Mbembe, ao trazer e aprofundar a discussão com o conceito de necropolítica, que parece orientar parte das políticas educacionais no Brasil. Estas, por sua vez, marcadas por um conjunto incompleto de leis, não garantem o acesso e a permanência da juventude negra na escola. Nesse contexto, surge o desafio de aprofundar o conceito de necroeduação para pensarmos as consequências da eliminação dos corpos negros dos espaços escolares orientada por certa intencionalidade que vai na direção do deixar morrer.

ABSTRACT This essay brings to the debate processes of invisibilization of the black youth in the Brazilian educational system with one of its main consequences being their symbolic death, which contributes to other ways of dying in the context of a society marked by structural racism. We start from the concept of biopolitics, which will be enhanced with the contribution of Achille Mbembe, by bringing and deepening the discussion from the concept of necropolitics, which seems to guide part of the educational policies in Brazil. These, in turn, are marked by an incomplete set of laws that do not guarantee access to and permanence of black youth in school. In this context, the challenge arises to deepen the concept of necroeducation to think about the consequences of the elimination of black bodies from school spaces guided by a certain intentionality that goes in the direction of letting die.

RESUMEN Este ensayo propone traer al debate algunos procesos de invisibilización del joven negro en el sistema educativo brasileño, siendo una de sus principales consecuencias su muerte simbólica, que contribuye a otras formas de morir en el contexto de una sociedad marcada por el racismo estructural. Para ello, partimos de referencias importantes, como el concepto de biopolítica que será enriquecido con la contribución de Achille Mbembe, trayendo y profundizando la discusión desde el concepto de necropolítica, que parece guiar parte importante de las políticas educativas en Brasil. Estas, a su vez, están marcadas por un conjunto incompleto de leyes que no garantizan el acceso y la permanencia de los jóvenes negros en la escuela. En este contexto, surge el desafío de profundizar el concepto de necroeduación para pensar en las consecuencias de la eliminación de los cuerpos negros de los espacios escolares guiados por una cierta intencionalidad que va en la dirección de dejar morir.

Resumo Este trabalho tem por objetivo investigar, pela primeira vez, as atividades antituberculose, antileishmania e antiproliferativa in vitro dos óleos essenciais (OEs) obtidos de folhas e flores de S. odoratissima. Avaliamos a atividade antimicobacteriana em termos da Concentração Inibitória Mínima (CIM). Os OEs mostraram ser antimicrobianos ativos contra M. tuberculosis, com valores de CIM de 150 µg/mL (folhas) e 162,5 µg/mL (flores). Os óleos apresentam significativa atividade antiparasitária contra a forma promastigota de L. amazonensis, com valores de CI50 (50% de inibição do crescimento) de 14,36 ± 2,02 (folhas) e 19,89 ± 2,66 µg/mL (flores). A atividade antiproliferativa em linhagem celular normal (GM07492A, fibroblastos de pulmão) e tumorais (MCF-7, HeLa e M059J) foi realizada utilizando o ensaio XTT; os resultados foram expressos a partir do cálculo da Concentração Inibitória de 50% do crescimento celular (CI50) e o índice de seletividade foi calculado. OEs de folhas e flores apresentaram um CI50 de 502,97 ± 40,33 µg/mL e 370,60 ± 2,01 µg/mL para a linhagem GM07492A, respectivamente. Observou-se atividade antiproliferativa contra todas as linhagens celulares tumorais humanas, com valores de CI50 significativamente inferiores aos obtidos para a linhagem celular normal, demonstrando valores de CI50 para a linhagem MCF-7 (367,57 ± 4,46 µg/mL para OEs folhas e 357,70 ± 1,85 µg/mL para OEs flores) e M059J (492,53 ± 56,67 µg/mL para OEs folhas e 324,90 ± 6,72 µg/mL para OEs flores). Estes resultados in vitro mostraram que OEs de S. odoratissima podem ser um possível candidato que atue como agente antimicobacteriano, antiparasitário e antitumoral.

Abstract This paper aims to investigate, for the first time, in vitro antitubercular, antileishmanial and antiproliferative activities of essential oils (EOs) from S. odoratissima leaves and flowers - grown in midwestern Brazil - against Mycobacterium tuberculosis, promastigote forms of Leishmania amazonensis and human tumor cell lines. Antimycobacterial activity of EOs was evaluated in terms of the minimal inhibitory concentration (MIC). EOs from leaves and flowers showed to be active antimicrobials against M. tuberculosis, since MIC values were 150 µg/mL and 162.5 µg/mL, respectively. Both EOs exhibited significant activity against promastigote forms of L. amazonensis; IC50 values (50% growth inhibition) were 14.36 ± 2.02 (EOs from leaves) and 19.89 ± 2.66 µg/mL (EOs from flowers). Antiproliferative activity in normal (GM07492A, lung fibroblasts) and tumor (MCF-7, HeLa and M059J) cell lines was performed by the XTT assay; results were expressed as IC50 (50% cell growth inhibition) and the selective index was calculated. IC50 values of EOs from leaves and flowers obtained in normal cell lines for were 502.97 ± 40.33 µg/mL and 370.60 ± 2.01 µg/mL, respectively. Antiproliferative activity was observed against human tumor cell lines, whose IC50 values were significantly lower than those obtained in normal cell lines of MCF-7 cells (367.57 ± 4.46 µg/mL-EOs from leaves and 357.70 ± 1.85 µg/mL-EOs from flowers) and M059J cells (492.53 ± 56.67 µg/mL-EOs from leaves and 324.90 ± 6.72 µg/mL-EOs from flowers), thus, indicating selectivity. These in vitro results showed that EOs from S. odoratissima may be an antimycobacterial, antiparasitic and antitumor agent.

Abstract Propolis is a resinous substance collected and processed by Apis mellifera from parts of plants, buds and exudates. In Minas Gerais (MG) state, Brazil, green propolis is produced from the collection of resinous substance found in shoot apices of Baccharis dracunculifolia. This paper aims to investigate the chemical composition and in vitro antioxidant, anti-Helicobacter pylori, antimycobacterial and antiproliferative activities of essential oil (EO) from Brazilian green propolis (BGP-EO). The oil showed high antibacterial activity against H. pylori (MIC = 6.25 µg/mL), Mycobacterium avium (MIC = 62.5 µg/mL) and M. tuberculosis (MIC = 64 µg/mL). Its antioxidant activity was evaluated in vitro by both DPPH (IC50 = 23.48 µg/mL) and ABTS (IC50 = 32.18 µg/mL) methods. The antiproliferative activity in normal (GM07492A, lung fibroblasts) and tumor cell lines (MCF-7, HeLa and M059J) was analyzed by the XTT assay. BGP-EO showed inhibition of normal cell growth at 68.93 ± 2.56 µg/mL. Antiproliferative activity was observed against human tumor cell lines, whose IC50 values were 56.17, 66.43 and -65.83 µg/mL for MCF-7, HeLa and M059J cells, respectively. Its major constituents, which were determined by GC-FID and GC-MS, were carvacrol (20.7 %), acetophenone (13.5 %), spathulenol (11.0 %), (E)-nerolidol (9.7 %) and β-caryophyllene (6.2 %). These results showed the effectiveness of BGP-EO as a natural product which has promising biological activities.

Abstract Endodontic infections result from oral pathogenic bacteria which reach and infect dental pulp, as well as surrounding tissues, through cracks, unrepaired caries and failed caries restorations. This study aims to determine the chemical composition of essential oil from Psidium cattleianum leaves (PC-EO) and to assess its antibacterial activity against endodontic bacteria. Antibacterial activity of PC-EO was evaluated in terms of its minimum inhibitory concentration (MIC) values by the broth microdilution method on 96-well microplates. Bacteria Porphyromonas gingivalis (MIC = 20 µg/mL), Prevotella nigrescens (MIC = 62.5 µg/mL), Fusobacterium nucleatum (MIC = 12.5 µg/mL), Actinomyces naeslundii (MIC = 50 µg/mL), Bacteroides fragilis (MIC = 12.5 µg/mL), Aggregatibacter actinomycetemcomitans (MIC = 6.25 µg/mL) and Peptostreptococcus anaerobius (MIC = 62.5 µg/mL) were evaluated and compared to chlorhexidine dihydrochloride (CDH), the positive control. PC-EO was obtained by hydrodistillation with the use of a Clevenger-type apparatus whereas its chemical composition was analyzed by gas chromatography-flame ionization detection (GC-FID) and gas chromatography-mass spectrometry (GC-MS). Viridiflorol (17.9%), β-caryophyllene (11.8%), 1,8-cineole (10.8%) and β-selinene (8.6%) were the major constituents found in PC-EO, which exhibited high antibacterial activity against all endodontic pathogens under investigation. Therefore, PC-EO, a promising source of bioactive compounds, may provide therapeutic solutions for the field of endodontics.

This study aims to investigate chemical composition of essential oils from Murraya paniculata (L.) Jack (Rutaceae) ripe and unripe fruits and determine their in vitro antibacterial activity. Essential oils were extracted by hydrodistillation from Murraya paniculata (L.) Jack ripe and unripe fruits collected in the Cerrado, in Rio Verde, southwestern Goiás, Brazil. They were analyzed by gas chromatography with flame ionization detector (GC-FID) and by gas chromatography-mass spectrometry (GC-MS). Sesquiterpenes, which represent the most abundant class of compounds in oils, predominated in both ripe and unripe fruits. Major constituents of essential oils extracted from ripe fruits (RF-EO) were (-caryophyllene (21.3%), (-ylangene (13.3%), germacrene-D (10.9%) and (-zingiberene (9.7%) whereas the ones of unripe fruits (UF-EO) were sesquithujene (25.0%), (-zingiberene (18.2%), germacrene-D (13.1%) and (-copaene (12.7%). In vitro antibacterial activity of essential oils was evaluated in terms of its minimum inhibitory concentration (MIC) values by the broth microdilution method in 96-well microplates. Both essential oils under investigation showed moderate anti-streptococcal activity against the following bacteria: Streptococcus mutans, S. mitis, S. sanguinis, S. sobrinus and S. salivarius. MIC values ranged between 100 and 400 µg/mL. Regarding the antimycobacterial activity, essential oils from M. paniculata (L.) Jack unripe and ripe fruits were active against Mycobacterium kansasii (MIC = 250 µg/mL), moderately active against M. tuberculosis (MIC = 500 µg/mL) and inactive against M. avium (MIC = 2000 µg/mL). This study was pioneer in revealing similar chemical profiles of both essential oils extracted from Murraya paniculata (L.) Jack unripe and ripe fruits, besides describing their in vitro anti-streptococcal and antimycobacterial activities.

ABSTRACT Propolis, is a bee product collected from exudates and flower buds of several plants, has strong aroma and several biological applications. This study aimed at evaluating the chemical composition and in vitro antioxidant, antibacterial and cytotoxic properties of volatile oil from Brazilian brown propolis. It was extracted by hydrodistillation and analyzed by gas chromatography-flame ionization detection and gas chromatography-mass spectrometry. Volatile oil from brown propolis exhibited strong antibacterial activity against H. pylori (MIC 3.25 µg/ml), Mycobacterium tuberculosis (MIC 50 µg/ml) and M. avium (MIC 62.5 µg/ml). It was evaluated in vitro for antioxidant activity by DPPH (IC50 25.0 µg/ml) and ABTS (IC50 30.1 µg/ml) methods. Its cytotoxic property was evaluated in normal (human fibroblasts, GM07429A) and tumor (MCF-7-human breast adenocarcinoma; HeLa-human cervical adenocarcinoma and M059J-human glioblastoma) cell lines. IC50 values were 81.32 µg/ml for GM07429A and 85.00, 129.40 and 84.12 µg/ml for MCF-7, HeLa and M059J cells, respectively. Three major dereplicated components of volatile oil from brown propolis were acetophenone (15.2%), nerolidol (13.3%), and spathulenol (11.6%). Our results contribute to a better understanding of the chemical and biological properties of Brazilian brown propolis and provide evidence for its potential medicinal use.

Indium have been widely investigated by scientists because of its several interesting properties and its use in different applications in the manufacture of TVs screens, computers, cell phones, solar panels, electroluminescent diodes (LEDs), organic electroluminescent diodes (OLEDs), DNA and antibody sensors, electrocatalysts, architectural glass coatings, low melting alloys, thermal interface materials, aircraft engine bearings, among others. The economic urge to make devices more cost effective and efficient has guide developments in different deposition technologies, such as dip-coating, plating, thick and thin film deposition. However, indium is classified as a critical metal. In this sense, we discussed the economic viability and spatial distribution of the indium resources in Brazil and worldwide considering that its supply still remains a concern. On top of that, the present review discusses the scientific and technological aspects of indium materials and highlights the major advances regarding their synthesis, properties and applications.

Resumo A partir de observações no campo da Promoção da Saúde, junto a pacientes de um Centro de Reabilitação no interior de São Paulo, notou-se que eles apresentam dificuldades em lidar com as limitações físicas adquiridas quando estas os incapacitavam para o trabalho. Objetivou-se ampliar os modos de escuta para facilitar o diálogo com pessoas em situações de debilidade física e afastadas de suas atividades laborais, utilizando o Photovoice, método de pesquisa-ação participativa, como ferramenta e o referencial teórico da Promoção da Saúde. As imagens captadas e os relatos que as acompanharam consistiram no material deste estudo. Duas categorias temáticas se sobressaíram: a decisão pericial e a condição física (vaidade, poder e esperança). A atividade laboral é percebida como determinante da inserção do indivíduo em seu meio, além de definir seu papel na família e no campo social. Diante da incapacidade, percebem-se sem identidade, vulneráveis e sem perspectivas futuras de reinserção social. Observase um processo de desajuste individual, familiar, mas sem visibilidade social e com consequências negativas para a saúde global. O Photovoice se mostrou efetivo na apreensão das percepções e no estímulo para o debate, fornecendo subsídios essenciais para a Promoção da Equidade em grupos em desvantagem social.

Abstract Health Promotion observations of patients from a Rehabilitation Center in rural São Paulo evidenced that these people faced difficulties in dealing with their physical limitations when these prevented them from working. This study aimed to broaden listening methods to facilitate dialogue with people in situations of physical frailty and removal from their work activities, using Photovoice, a participatory research-action method, as a tool and Health Promotion's theoretical framework. Images captured and reports that accompanied them consisted of the material of this study. Two thematic categories stood out: the expert decision; and physical condition: vanity, power and hope. Labor activity is perceived as a determinant of individuals’ introduction in their environment and defines their role in the family and in the social field. Faced with disability, they feel deprived of their identity, vulnerable and without future prospects of social reintegration, an individual and familiar misfit process, but without social visibility and with negative consequences for global health is observed. Photovoice proved to be effective in apprehending perceptions and stimulating debate, providing essential inputs to promote equity in socially disadvantaged groups.

Resumo O direito à saude se interconecta com o direito à cidade na medida em que, ao se garantir espaços urbanos saudáveis para a população, garante-se também a redução de iniquidades e a expansão do usufruto dos efeitos positivos da urbanização a grupos postergados e desfavorecidos. A interconexão entre o direito à cidade e o direito à saúde é hipotetizado como propulsor necessário à promoção da equidade. Este artigo busca explorar esta interconexão entre o direito à cidade e o direito à saúde, ancorado em uma revisão integrativa, norteada pela questão: Qual o conhecimento produzido sobre o direito à cidade e o direito à saúde à luz da equidade? Analisaram-se evidências disponíveis na literatura indexadas no PubMed/Medline, Lilacs e SciELO, entre 1986 e 2016. Foram identificados nas três décadas analisadas distintos níveis de presença do direito à cidade e do direito à saúde na formulação de políticas e na agenda de revindicações dos movimentos sociais. Formulações em torno do crescimento populacional afastam da agenda os direitos, enquanto numa fase posterior o adensamento democrático revitaliza a luta pelos direitos à saúde. Num terceiro momento de visibilização política dos espaços geográficos excluídos e das agendas identitárias, entra forte no jogo a luta pelo direito de todos e todas à cidade.

Abstract Right to health intertwines with right to the city: guaranteed access to healthy urban spaces reduces inequities among the population, so that disadvantaged groups can also enjoy positive urbanization effects. In this sense, interconnection between right to the city and right to health promotes equity. This article seeks to explore the interconnection between right to the city and right to health on the basis of an integrative review guided by the question ‘What knowledge about right to the city and right to health has been produced in the light of equity?’ For this purpose, we analyzed evidence available in the literature indexed in PubMed/Medline, Lilacs, and SciELO between 1986 and 2016. Over this three-decade span, we identified the presence of different degrees of right to the city and right to health in the formulation of policies and in social movement agendas. Formulations regarding population growth moved away from the rights agenda, but in a later phase of democratic consolidation, the fight for rights to health re-emerged. In a third moment of the political visibility of excluded geographical spaces and multiple identity agendas, the struggle to ensure everyone's right to the city came on strong in the game.

Resumo A partir de observações no campo da Promoção da Saúde, junto a pacientes de um Centro de Reabilitação no interior de São Paulo, notou-se que eles apresentam dificuldades em lidar com as limitações físicas adquiridas quando estas os incapacitavam para o trabalho. Objetivou-se ampliar os modos de escuta para facilitar o diálogo com pessoas em situações de debilidade física e afastadas de suas atividades laborais, utilizando o Photovoice, método de pesquisa-ação participativa, como ferramenta e o referencial teórico da Promoção da Saúde. As imagens captadas e os relatos que as acompanharam consistiram no material deste estudo. Duas categorias temáticas se sobressaíram: a decisão pericial e a condição física (vaidade, poder e esperança). A atividade laboral é percebida como determinante da inserção do indivíduo em seu meio, além de definir seu papel na família e no campo social. Diante da incapacidade, percebem-se sem identidade, vulneráveis e sem perspectivas futuras de reinserção social. Observase um processo de desajuste individual, familiar, mas sem visibilidade social e com consequências negativas para a saúde global. O Photovoice se mostrou efetivo na apreensão das percepções e no estímulo para o debate, fornecendo subsídios essenciais para a Promoção da Equidade em grupos em desvantagem social.

Abstract Health Promotion observations of patients from a Rehabilitation Center in rural São Paulo evidenced that these people faced difficulties in dealing with their physical limitations when these prevented them from working. This study aimed to broaden listening methods to facilitate dialogue with people in situations of physical frailty and removal from their work activities, using Photovoice, a participatory research-action method, as a tool and Health Promotion's theoretical framework. Images captured and reports that accompanied them consisted of the material of this study. Two thematic categories stood out: the expert decision; and physical condition: vanity, power and hope. Labor activity is perceived as a determinant of individuals’ introduction in their environment and defines their role in the family and in the social field. Faced with disability, they feel deprived of their identity, vulnerable and without future prospects of social reintegration, an individual and familiar misfit process, but without social visibility and with negative consequences for global health is observed. Photovoice proved to be effective in apprehending perceptions and stimulating debate, providing essential inputs to promote equity in socially disadvantaged groups.