The monotypic South African alderfly genus Leptosialis Esben-Petersen, 1920 is reviewed and Leptosialis africana Esben-Petersen, 1920 is redescribed. In the process a new species of alderfly Leptosialis necopinatasp. n. from the Eastern Cape and KwaZulu-Natal provinces of South Africa is recognised and described. Within Sialidae the new species most closely resembles Leptosialis africana. A key...

www.sciencemag.org (this information is current as of January 13, 2008 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/318/5858/1920 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/1152092/DC1 can be found at...

www.sciencemag.org (this information is current as of January 10, 2008 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/318/5858/1920 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/1152092/DC1 can be found at...

Paulo, Universidade Federal de Sao Paulo, Sao Paulo, SP, BR. Programa de Estudos Pos-Graduados em Fonoaudiologia, Pontificia Universidade Catolica de Sao Paulo (PUC-SP), Sao Paulo, SP, BR. Departamento de Fonoaudiologia, Escola Paulista de Medicina, Universidade Federal de Sao Paulo (EPM/ UNIFESP), Sao Paulo, SP, BR. Department of Neurology, Krankenanstalt Rudolfstiftung, Vienna, Austria. Depar...

Although humans measure time using a continuous scale, certain numerical ages inspire greater self-reflection than others. Six studies show that adults undertake a search for existential meaning when they approach a new decade in age (e.g., at ages 29, 39, 49, etc.) or imagine entering a new epoch, which leads them to behave in ways that suggest an ongoing or failed search for meaning (e.g., by...

Real-parameter optimisation is a prolific research line with hundreds of publications per year. There exists an impressive number of alternatives in both algorithm families and enhancements over their respective original proposals. In this work, we analyse if this growth in the number of publications is correlated with a real progress in the field. We have selected five approaches from one of t...

The occurrence of large radiological opacities in the lung parenchyma in cases ofprimary tuberculosis has been recognized since Eliasberg and Neuland (1920) described a dense shadow, occurring usually in the right upper lobe, in young children with a primary infection. They stated that the onset was not acute, the course was benign, and that tubercle bacilli were not recoverable from the sputum...

Age-structure analysis of aspen (Populus tremuloides) was conducted on Rocky Mountain elk (Cervus elaphus) winter range in the northern Yellowstone area by collecting increment cores from aspen trees in Yellowstone National Park, the Gallatin National Forest, and the Sunlight/Crandall area of the Shoshone National Forest. Our goal was to compare aspen age structure for elk winter range in the p...