Cuticular Hydrocarbon Variation of Castes and Sex in the Weaver Ant Camponotus textor (Hymenoptera: Formicidae)

Cuticular hydrocarbons play important roles as chemical signatures of individuals, castes, sex and brood. They also can mediate the regulation of egg laying in ants, by informing directly or indirectly the reproductive status of queens. In this study we asked whether cuticular hydrocarbon profiles are correlated with castes and sex of Camponotus textor. Cuticular hydrocarbons were extracted from part of a mature colony (80 workers, 27 major workers, 27 queens, 27 virgin queens and 27 males). Results showed that cuticular hydrocarbons varied quantitatively and qualitatively among the groups and this variation was sufficiently strong to allow separation of castes and genders. We discuss the specificity of some compounds as possible regulatory compounds of worker tasks and reproduction in C. textor

A New Species of the Neotropical Social Swarming-Wasp Chartergellus Bequaert (Hymenoptera: Vespidae: Epiponini).

Abstract- A new species of Chartergellus, collected in Acre State, is described and comparative remarks are given

Foraging behavior of Scaptotrigona depilis (Hymenoptera, Apidae, Meliponini) and its relationship with temporal and abiotic factors

Stingless bees play an important role in Tropical and Subtropical ecosystems as pollinators of many plants. The aim of this study was to characterize the pattern of flight activity and foraging for pollen by Scaptotrigona depilis workers and their relation with climatic and temporal factors. We observed flight activity from July 2001 to June 2002 and pollen collection by scoring the flow of workers entering and exiting the colonies. We tested whether environmental (temperature, relative humidity, pluviosity and luminosity) and temporal predictors (month and time of day) affected bees’ activities. The study was conducted during one year and the records of observations showed that during the dry season when the length of light is longer, the external activity was more intensive, while during cold months with shorter light period, foraging activity was reduced. Pollen collection showed a peak in February, but in general this activity was regulated by temperature, humidity and daily luminosity

Description of a new species of Metapolybia, a Neotropical genus of social wasps, from the Amazon Forest.

A new species of Metapolybia, which had been included erroneously among the paratypes of M. acincta by Richards (1978) is described

MÍDIA, MULHER E CORPO: UMA ANÁLISE A PARTIR DO DOCUMENTÁRIO “O CORPO É MEU”

O presente texto tem como objetivo analisar o curta-metragem sergipano “O corpo é meu (2014)”, de Luciana Oliveira Vieira, interpelando o corpo da mulher como suporte material da mídia a partir das narrativas trazidas pela diretora na obra fílmica. O escrito se propõe a desnaturalizar as práticas que usam o corpo da mulher para fazer girar as engrenagens do capitalismo neoliberal relegando-as a objetos de consumo ou a corpos consumidores. Acredita-se que o documentário analisado foi representativo na medida em que se propõe a abalar e transformar pela – e na – luta coletiva de mulheres as dinâmicas tradicionais e conservadoras da sociedade. “O corpo é meu” se torna um mecanismo simbólico, uma produção cultural descolonizadora que evidencia a captura dessa transformação no estado de Sergipe, como parte de uma dinâmica cultural nacional e internacional comprometida com a ressignificação da existência da mulher.Palavras-chave: Documentário “O corpo é meu”. Mídia. Mulher. Corpo.ABSTRACTThe present text aims to analyze the 2014 short film from Sergipe called “O corpo é meu” by Luciana Oliveira Vieira questioning the woman’s body as material support of the media from the narratives brought by the director in the film work. The writing proposes to denaturalize practices that use women’s bodies to spin the gears of neoliberal capitalism by relegating them to consumer objects or consumer bodies. It is believed that the analyzed documentary was representative in that it proposes to shake and transform through – and within – the collective struggle of women the traditional and conservative dynamics of society. “It’s my body” becomes a symbolic mechanism, a decolonizing cultural production that highlights the capture of this transformation in the state of Sergipe, as part of a national and international cultural dynamic committed to the re-signification of women’s existence.Keywords: Documentary “O corpo é meu”. Media. Woman. Body

La qualité de l'éducation dans une infographie du journal Folha de São Paulo

En este artículo, analizamos y discutimos los discursos y las imágenes sobre la escuela y la calidad de la educación en Brasil. El corpus está constituido por un reportaje del diario Folha de São Paulo, que presenta y analiza un infográfico. Para ello, Movilizamos presupuestos teórico-metodológicos del Análisis de Discurso Francés (AD).PALABRAS CLAVE: Discurso. Educación. Los medios de comunicación.Dans cet article, nous analysons et discutons des discours et des images sur l'école et la qualité de l'éducation au Brésil. Le corpus est constitué d'un rapport du journal Folha de São Paulo, qui présente et analyse une infographie. À cette fin, nous avons mobilisé les hypothèses théorico-méthodologiques de l’Analyse du discours en français (AD).MOTS-CLÉS: Discours. Éducation. Médias.In this article, we analyze and discuss discourses and images about school and the quality of education in Brazil. The corpus is made up of a report from Folha de São Paulo newspaper, which presents and analyzes an infographic. To this end, we mobilized the theoretical-methodological assumptions of the French Discourse Analysis (AD).KEYWORDS: Speech. Education. Media.Neste artigo, analisamos e discutimos os discursos e as imagens sobre a escola e a qualidade da educação no Brasil. O corpus é constituído de uma reportagem do jornal Folha de São Paulo, que apresenta e analisa um infográfico. Para tanto, Mobilizamos pressupostos teórico-metodológicos da Análise de Discurso Francesa (AD).PALAVRAS-CHAVE: Discurso. Educação. Mídia. ABSTRACTIn this article, we analyze and discuss discourses and images about school and the quality of education in Brazil. The corpus is made up of a report from Folha de São Paulo newspaper, which presents and analyzes an infographic. To this end, we mobilized the theoretical-methodological assumptions of the French Discourse Analysis (AD).KEYWORDS: Discourse. Education. Media

A NEW PERSPECTIVE FOR PHYSICAL HEIGHTS IN BRAZIL

The physical heights definition of heights, proposed by Helmert in 1890 is one of the commonly used heights systems in practice. In Helmert’s definition, the mean value of gravity along plumbline is computed by simplifying the topography with a Bouguer shell containing masses with mean density value. Although this approximation might be accurate enough many purposes, a more rigorous definition can be determined by considering the effects of terrain, topographic mass density variation, and masses contained in the geoid the mean gravity value along the plumbline. The purpose of this paper is to compute the corrections for the Helmert’s definition of the orthometric heights to obtain the rigorous orthometric heights in the state of São Paulo and adjacent states and to evaluate these corrections. The heights system used in Brazil (until July 2018) and some South American countries is normal-orthometric heights, therefore the corrections needs to be applied accordingly. Our numerical results show that there are significant differences between the normal-orthometric and rigorous orthometric heights, with maximum values of ~ 0.4 m, minimum of ~ -0.8 m and mean value of ~ -0.32 m. There are larger differences between normal-orthometric and normal height than the ones between normal and rigorous definition of orthometric heights.The physical heights definition of heights, proposed by Helmert in 1890 is one of the commonly used heights systems in practice. In Helmert’s definition, the mean value of gravity along plumbline is computed by simplifying the topography with a Bouguer shell containing masses with mean density value. Although this approximation might be accurate enough many purposes, a more rigorous definition can be determined by considering the effects of terrain, topographic mass density variation, and masses contained in the geoid the mean gravity value along the plumbline. The purpose of this paper is to compute the corrections for the Helmert’s definition of the orthometric heights to obtain the rigorous orthometric heights in the state of São Paulo and adjacent states and to evaluate these corrections. The heights system used in Brazil (until July 2018) and some South American countries is normal-orthometric heights, therefore the corrections needs to be applied accordingly. Our numerical results show that there are significant differences between the normal-orthometric and rigorous orthometric heights, with maximum values of ~ 0.4 m, minimum of ~ -0.8 m and mean value of ~ -0.32 m. There are larger differences between normal-orthometric and normal height than the ones between normal and rigorous definition of orthometric heights

Strategy for Connecting to the IHRF: Case Study for the Tide Gauge of Cananeia-SP

In July 2018, IBGE launched the new heights of the Brazilian Geodetic System (BGS), the normal height, which has associated gravity. These new heights are replacing the old normal-orthometric ones, in which there was only the non-parallelism correction. The IBGE informs that the values farther from the origin, have less accuracy. This lower accuracy may interfere in the future, the connection of the local tide gauges to IHRF (International Reference Frame Height). Thus, this paper proposes the integration of the local tide gauge of Cananeia-SP to the IHRF. In order to validate the methodology, the normal, Helmert, and rigorous orthometric heights using two distinct references: the Imbituba-SC tide gauge, as the origin of the BGS and the Cananeia-SP tide gauge, as a local tide gauge to be integrated into the IHRF. Calculating the three heights through these two origins, we analyzed the discrepancies in comparison to the heights calculated by IBGE. Numerical tests indicate that there was an improvement in terms of a mean and standard deviation when using the Cananeia gauge as origin in the calculation of normal, Helmert, and rigorous heights. In the congruence analysis, the calculations indicate that the highest standard deviation is presented when using IBGE normal heights. Thus, we have a new origin that is reliable and functional, can be integrated with the IHRF, where the Helmert and rigorous orthometric heights have the best statistical results

Occurrence and nesting behavior of social wasps in an anthropized environment

Some effort had been made concerning the social biodiversity of wasps in Brazil; however, few approaches have been made relating to how this taxa have adapted their nesting behavior to anthropic mixed environments. Thus, the present work aimed to survey the occurrence of social wasps in an anthropic area and their relationship with different types of nesting substrates. Increasing the knowledge of social wasps in anthropic areas would allow us to develop strategies for their conservation and management. Twenty long-term surveys were made at the Universidade de São Paulo, Ribeirão Preto campus, São Paulo State. During the searches, we collected information about wasp species and nesting substrate. A total of 20 species of 8 genera were identified, and a total of 431 active colonies were registered. Epiponini was the richest in terms of species richness. On the other hand, Mischocyttarini was represented by more active colonies. Mischocyttarus cerberus had a remarkably greater number of colonies, which agreed with the idea of preference of anthropic environments by independent founding wasps. Nesting behavior was associated with eight substrate categories. We observed that some species might express certain plasticity regarding their nesting substrate usage, whereas some expressed certain specificity. Facing the increase in the actual urbanization process and, consequently, habitat loss, this type of study might contribute towards better understanding how these insects are affected by altered environment.