This paper proves that in any closed Riemannian surface $M$ with diameter $d$, the length of $k^\text{th}$-shortest geodesic between two given points $p$ and $q$ is at most $8kd$. bound can be tightened further to $6kd$ if $p = q$. improves prior estimates by A. Nabutovsky R. Rotman.

Hervé Abdi, Vincent Guillemot, Aida Eslami and Derek Beaton School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA Bioinformatics and Biostatistics Hub, Institut Pasteur (IP), C3BI, USR 3756 CNRS, Paris, France Centre for Heart Lung Innovation, University of British Columbia, Vancouver, BC, Canada Rotman Research Institute, Baycrest Health Sciences, Toro...

R. L. Barry, J. C. Gatenby, A. T. Newton, S. C. Strother, and J. C. Gore Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States, Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, United States, Rotman Research Institute of Baycrest, Toronto, ON, Canada, Department of Medical Biophysics, University of Toronto...

Background: Contact lenses are transparent, thin plastic disks that cover the surface of the cornea. Appropriate lens prescription should be performed properly by an expert to provide better visual acuity and reduce side effects. The lens administration is a multi-stage, complex and time-consuming process involving many considerations. The purpose of this study was to develop a decision support...

purpose: to evaluate visual function in patients with different types of light-filtering intraocular lenses (iols) methods: in this prospective comparative clinical study cataract patients with different types of iols in khatam-al-anbia eye hospital, mashhad were enrolled and followed for three months postoperatively. corrected distance visual acuity (cdva), color discrimination under photopic ...

KONSTANTINE K. ZAKZANIS, LARRY LEACH, and MORRIS MOSCOVITCH 1 Department of Psychology, York University, Toronto, Ontario, Canada, and the Department of Psychology, Baycrest Centre for Geriatric Care, Toronto, Ontario, Canada 2 Department of Psychology, Baycrest Centre for Geriatric Care, Toronto, Ontario, Canada 3 Rotman Research Institute of Baycrest Centre for Geriatric Care, Toronto, Ontari...

1 Department of Psychology, University of Toronto, Toronto, ON, Canada 2 Department of Psychology, York University, Toronto, ON, Canada 3 Rotman Research Institute, Toronto, ON, Canada 4 Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, USA 5 Vanderbilt University Medical Center, Vanderbilt Brain Institute, Nashville, TN, USA 6 Vanderbilt Kennedy Ce...

Associative retrieval processes in the human medial temporal lobe: Hippocampal retrieval success and CA1 mismatch detection Janice Chen, Rosanna K. Olsen, Alison R. Preston, Gary H. Glover, and Anthony D. Wagner Department of Psychology, Stanford University, Stanford, California 94305, USA; Rotman Research Institute, Toronto, Ontario, M6A 2E1, Canada; Department of Psychology and Center for Lea...