Diversity of Social Wasps on Semideciduous Seasonal Forest Fragments with Different Surrounding Matrix in Brazil

We surveyed social wasps (Polistinae) present in forest fragments of northwest of São Paulo state with different surroundings composed of a matrix of citrus crops and sugarcane in the expectation that the former matrix would be more diverse than the latter. We collected specimens actively using attractive liquids. We obtained 20 species in Magda, 13 in Bebedouro, 13 in Matão, and 19 in Barretos. The most common genus was Agelaia in all of the areas. The greatest Shannon-Wiener index of diversity was obtained in Magda (H′=2.12). Species such as Brachygastra moebiana, Metapolybia docilis, Mischocyttarus ignotus, M. paulistanus and M. consimilis had not been recorded on recent surveys in the state. Furthermore M. consimilis is a new record for the state. We concluded that, with our data, a relation between the occurrence of social wasps and the surrounding matrix was not detected

Contaminants of Emerging Concern: From the Detection to Their Effects on Human Health.

International audienceContaminants of Emerging Concern: From the Detection to Their Effects on Human Health

EXCLUSÃO E RAÇA: INCURSÕES A PARTIR DO “RACISMO DE ESTADO” DE MICHEL FOUCAULT SOBRE O PROBLEMA DAS EXPERIÊNCIAS DAS DESIGUALDADES

O presente trabalho discute como a exclusão social pode se dar por meio da exploração e reprodução no campo das raças. Procura-se entender as condições dentro das quais essa categoria bélico-política opera. No primeiro momento, são analisadas as noções de “racismo de estado” e “biopoder”. Em seguida, são apresentadas algumas considerações que tocam às construções de formas sociais, dando ênfase no Direito como categoria ativadora de todo o “racismo de estado”. Ao final, apresenta-se a situação atual em que vivemos, a partir da necessária mudança das configurações em defesa de um ambiente menos inóspito para toda a espécie humana

Morphology and Histochemistry of the Venom Apparatus in Different Castes of the Ant Ectatomma vizottoi (Formicidae: Ectatomminae)

The elimination of toxins via a venom gland by some ant species is a component of a larger mechanism for capturing prey and defense. The present study describes the morphology and histochemistry of the venom apparatus of different castes of the ant Ectatomma vizottoi Almeida, 1987. Morphologically, the venom apparatus of queens, gynes and workers of E. vizottoi are similar and composed of the sting apparatus and three distinct portions: two secretory portions (convoluted gland and secretory filament), and a storage portion (reservoir) - a hollow sting apparatus covered in the terminal portion of the reservoir by a sclerotized cuticle. The venom gland of E. vizottoi is longer in queens and gynes than in workers. Furthermore, the epithelium of the convoluted gland is taller in the glands of queens and gynes than in workers, which may be indicative of greater toxin synthesis, or may be related to different body sizes of the castes. The morphology and histology of the venom apparatus reflect those of a generalist, while the histochemical tests indicated that this structure has the same chemical content of lipids, proteins and polysaccharides among queens, gynes, and workers. Images obtained by confocal microscopy and scanning electronic microscopy reveal a muscle layer surrounding the reservoir that is interlaced with secretory filaments, which fixes, in a manner, the filaments in place. This musculature serves to eject stored venom, which likely leads to greater success in defense or foraging

O DISPOSITIVO PEDAGÓGICO DAS REVISTAS CONTIGO! E ROLLING STONE EM RELAÇÃO A PABLLO VITTAR

Este artigo analisa as edições n. 2.192 e 137 das revistas Contigo! e Rolling Stone, publicadas respectivamente em setembro de 2017 e janeiro de 2018. Tais revistas apresentam práticas linguísticas em relação à cantora Pabllo Vittar que parecem desestabilizar o binômio masculino-feminino, constituinte do que se convencionou denominar língua portuguesa.  A construção do corpus de análise pauta-se na pesquisa documental, sendo formado por quinze excertos retirados de ambas as revistas analisadas. Os resultados sugerem que as revistas funcionam como um dispositivo pedagógico que, por meio das práticas linguísticas relacionadas a Pabllo Vittar, nos ensinam modos outros de ser e estar no mundo social. Palavras-Chave: concepção de língua; binômio masculino-feminino; dispositivo pedagógicoTHE PEDAGOGICAL DEVICE OF THE MAGAZINES WITH YOU! AND ROLLING STONE IN RELATION TO PABLLO VITTARThis paper analyses the editions n. 2.192 and n. 137 of Contigo! and Rolling Stone magazines, which were published respectively in September, 2017 and January, 2018. Those magazines introduce linguistic practices related to the singer Pabllo Vittar that seem to desestablish the masculine-feminine binomial, which constitutes what is considered as the Portuguese language. Results suggest that the magazines function as a pedagogical device that, among the linguistic practices related to Pabllo Vittar, teach us other ways of being and living in the social world. Keywords: concept of language; masculine-feminine binomial; pedagogical device 

Eficácia anti-helmíntica da ivermectina em equinos: exames coproparasitológicos e hematológicos

O objetivo do presente estudo foi avaliar a eficácia da ivermectina a 2% em equinos, através de exames coproparasitológicos e hematológicos. O experimento foi realizado em uma fazenda no município de Uberlândia, MG. Foram utilizados 24 equinos, de três a oito anos, divididos em dois grupos, conforme valores dos OPG. Contagens de OPG e coproculturas foram realizadas nos dias D0, D+7 e D+14. Os animais foram tratados com a formulação pasta a base de ivermectina 2%, na dose de 200 mcg/kg, via oral. Amostras de sangue foram coletadas nos dias D0, D+7 e D+14 para avaliação dos parâmetros hematológicos. A presença de ovos, característicos da família Strongylidae e identificação de larvas características de ciatostomíneos demonstrou o parasitismo dos animais por pequenos estrôngilos. Nos D+7 e D+14 houve a redução significativa do OPG no grupo tratado com eficácia de 99,5 e 99,7%, respectivamente. Observou-se tendência do quadro eritrocitário manter-se próximo aos limites inferiores e discreta leucocitose com neutrófilos próximos dos valores superiores. Pode-se inferir que a ivermectina é eficaz contra os ciatostomíneos e alterações hematológicas significativas não foram observadas.Palavras-chave: Ciatostomíneos; Equinos; Nematódeos; OP

Effect of different cleansers on the weight and ion release of removable partial denture: an in vitro study

OBJECTIVE: Removable partial dentures (RPD) require different hygiene care, and association of brushing and chemical cleansing is the most recommended to control biofilm formation. However, the effect of cleansers has not been evaluated in RPD metallic components. The aim of this study was to evaluate in vitro the effect of different denture cleansers on the weight and ion release of RPD. MATERIAL AND METHODS: Five specimens (12x3 mm metallic disc positioned in a 38x18x4 mm mould filled with resin), 7 cleanser agents [Periogard (PE), Cepacol (CE), Corega Tabs (CT), Medical Interporous (MI), Polident (PO), 0.05% sodium hypochlorite (NaOCl), and distilled water (DW) (control)] and 2 cobalt-chromium alloys [DeguDent (DD), and VeraPDI (VPDI)] were used for each experimental situation. One hundred and eighty immersions were performed and the weight was analyzed with a high precision analytic balance. Data were recorded before and after the immersions. The ion release was analyzed using mass spectrometry with inductively coupled plasma. Data were analyzed by two-way ANOVA and Tukey HSD post hoc test at 5% significance level. RESULTS: Statistical analysis showed that CT and MI had higher values of weight loss with higher change in VPDI alloy compared to DD. The solutions that caused more ion release were NaOCl and MI. CONCLUSIONS: It may be concluded that 0.05% NaOCl and Medical Interporous tablets are not suitable as auxiliary chemical solutions for RPD care