Phoretic mites (Acari: Chaetodactylidae) associated with the solitary bee Tetrapedia diversipes (Apidae: Tetrapediini)

Solitary bees of the genus Tetrapedia have a specific association with mites of the genus Roubikia (Chaetodactylidae). These mites are frequently found attached to active Tetrapedia bees. We quantified the number of mites on individuals of Tetrapedia diversipes Klug and examined the interaction between these species. Nests of T. diversipes were obtained from trap-nests placed in four localities in Sao Paulo, Brazil. The study lasted from March 2007 to February 2009. Out of a total of 650 nests with emergences, 118 were infested with mites (Roubikia sp.). From these nests, 176 individuals of T. diversipes emerged with mites on their bodies. Additionally, six individuals of Coelioxoides waltheriae, the specific kleptoparasitic bee to T. diversipes, emerged. Mites were attached mainly to the mesosoma. All nests infected with mites did not presented mortality of the immature. The mortality rate of nests was inversely related to the level of mite infestation, suggesting a mutualistic interaction in which mites may remove fungi from the nests, while the bees would provide the mites with transport, dispersal, and shelter.

EPI Update: Special Alert, July 19, 2013

Weekly newsletter for Center For Acute Disease Epidemiology of Iowa Department of Public Health. SPECIAL ALERT

L'Univers

1909/01/18 (Numéro 14802)-1909/01/19.

Obras de don Manuel Payno

UANL

Evaluación del proyecto de 'Mejora de la calidad educativa mediante la incorporación del Enfoque de Género' en escuelas de República Dominicana : resultados de su impacto.

Se describe el contenido del proyecto 'Mejora de la calidad educativa mediante la incorporación del Enfoque de Género' realizado en las provincias de Independencia y Elías Piña de República Dominicana, que consiste en la puesta en práctica de una propuesta pedagógica que recoge actividades formativas y organizativas dirigidas a profesorado, alumnado y familias de las escuelas seleccionadas para cada zona. Se expone el diseño y el proceso de evaluación del proyecto y se presentan los resultados del impacto del proyecto en los tres colectivos seis meses después de su finalización.

Validação de instrumentos para avaliação do conhecimento e da habilidade acerca da punção venosa periférica com cateter agulhado

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Phototrophic growth of Rubrivivax gelatinosus in poultry slaughterhouse wastewater

Rubrivivax gelatinosus was grown in Pfennig's synthetic medium (PM) and in treated wastewater from poultry slaughterhouse (TW) to assess growth profiles for biomass production. Cultures inoculated at 1% (v/v) were grown under anaerobiosis at 30 +/- 2 degrees C and 1400 200 lux for 12 days. Regular absorbance curves for R. gelatinosus were found both on PM and TW. on PM, the highest dry weight of biomass, 0.39 g L-1. was achieved in the 216-h culture and the highest specific growth rate of 0.2960 h(-1) occurred in the 24-h culture. on TW, the highest biomass of 0.57 g L-1 was also obtained in the 216-h culture and the highest specific growth rate, 0.1970 h(-1), was achieved in the 48-h culture. For productivity and chemical oxygen demand investigations, the cultivation was accomplished in the TW under anaerobiosis at 32 +/- 2 degrees C and 4000 +/- 500 lux, for 10 days. Productivity was 0.085 g biomass (d.w.) L-1 day(-1), with a COD decrease of 91%. (c) 2007 Elsevier Ltd. All rights reserved.

Los foros intergubernamentales de la Comisión Económica para América Latina y el Caribe = Intergovernmental forums of the Economic Commission for Latin America and the Caribbean

Teniendo presente la posibilidad de que durante el vigésimo tercer período de sesiones de la CEPAL se considere el ingreso de nuevos miembros, se proporciona información y antecedentes sobre la creación y composición de la CEPAL, composición de las otras comisiones regionales de las Naciones Unidas, y lista de Estados miembros de la CEPAL.