Interspecific comparative studies have shown that, in most taxa, postcopulatory sexual selection (PCSS) in the form of sperm competition drives the evolution of longer and faster swimming sperm. Work on passserine birds has revealed that PCSS also reduces variation in sperm size between males at the intraspecific level. However, the influence of PCSS upon intra-male sperm size diversity is poor...

1Agnes Ginges Centre for Molecular Cardiology, Centenary Institute, Sydney, NSW 2042, Australia; 2Central Clinical School, Sydney Medical School, University of Sydney, Australia; 3Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia; 4Centre for Research in Evidence Based Practice, Bond University, Queensland, Australia; 5Sydney Medical School—Public Health, University of S...

1Department of Infectious Diseases and Immunology, University of Sydney, Sydney, NSW 2000, Australia 2 Infectiologie Animale et Santé Publique, INRA Centre de Tours, Nouzilly 37380, France 3Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA 4Centenary Institute of Cancer Medicine and Cell Biology, Newto...

P 2042 Effect of endocannabinoids on [3H]-gaba uptake in rat globus palllidus – relevance to Parkinson’s disease K. Venderova, T. M. Brown, J. M. Brotchie, E. Ruzicka, P. Visnovsky Faculty of Pharmacy, Charles University, Hradec Kralove, CZECH REPUBLIC, School of Biological Sciences, University of Manchester, Manchester, UNITED KINGDOM, 1st Medical Faculty, Charles University, Prague, CZECH REP...

PURPOSE To test the hypothesis that manganese-enhanced magnetic resonance imaging (MEMRI) is a sensitive approach for measuring of age-related ocular changes in experimental pigmentary glaucoma. METHODS Four groups of light-adapted mice were studied using MEMRI: young (2-3 months), C57BL/6 (negative controls), and DBA/2J mice and aged (10-11 months) C57BL/6 and DBA/2J mice. In all mice, eye p...

Leptohyphes cornutus Allen from Brazil (Santa Catarina) and Misiones, Argentina is re-studied from new material and newly diagnosed as follows: tubercles on head (two pairs), pronotum (two pairs, anterior pair very small), and mesonotum (two pairs), abdominal terga without paired tubercles, nor remnants of them; fore femur length/maximum width, 1.4-1.8; tarsal claws denticulation 4-11+1; hind w...

The area south of the Shandong peninsula has been of great interest to both oceanographers and underwater acousticians due to the measurements of Zhou et al. [J. Acoust. Soc. Am. 90 (1991) 2042]. Over a period of years, in the summer, they observed anomalous losses in shallow water acoustic signals. They attributed the losses to acoustic mode conversions produced by solitary internal waves (sol...

Purpose: The aim of this study was to develop a method for the direct measurement of electron beam width and distribution at the scattering foil on the carrousel in a medical linear accelerator gantry head, which differs from an existing indirect method for measuring the focal spot size using a camera or metallic slit located outside the gantry head. Methods: The electron beam emitted by the li...

In this paper, properties of slab deformation in sizing press mill as one of the slab reduction processes in hot rolling mills have been evaluated using the elastoviscoplastic finite element method with explicit formulation. Effect of prarameters such as initial slab width and thickness, reduction, feed pitch, and anvil speed on factors such as dogbone formation, head and tail fishtail profile,...