[b]Abstract Objective.[/b] The aim of the study is to present four cases of lawn mowers injuries as a cause of serious visual acuity impairment. [b]Materials and Method[/b]. A retrospective study of four patients admitted in 2013-2015 to the Department of Vitreoretinal Surgery in Lublin with severe open or closed globe injury, one with an intraocular foreign body (IOFB). The presence of eye pro...

Whether you buy a laptop computer or a lawn mower, you expect to learn how best to use it. For some products it is enough to skim the user’s manual. For others you need to attend a class. In the past, product training was considered an attribute of product support. It came bundled with the product and was an expected feature like a power cord or the certificate of warranty. This situation has c...

7 EDITORIAL Please cite this paper as: White, J. Going native (or not): Five questions to ask mobile application developers. Introduction I recently needed a new shovel. At the hardware store I was, as always, taken aback at the range of options available to me, and the range of prices I could pay. Hardware store regulars will know that this is true of everything from lawnmowers to screwdrivers...

Robotic ground vehicles are systems that use gravity and contact forces with the ground to perform motion. In this paper we will focus on n-wheeled vehicles able to perform motion with all the wheels maintaining contact at the same time. The main goal of this work is to establish the implication of the topological architecture of the vehicle mechanism on criteria such as climbing skills, robust...

Various single-rider open vehicles, such as lawnmowers, are susceptible to overturning on slopes that are too steep for them. Warnings have included separation from the vehicles and avoiding slopes that are too steep. A recommended maximum slope is commonly 15 degrees. However, many individuals cannot evaluate slopes just by sight. Some mower manufacturers have warned about too steep slopes and...

This paper describes our recent work on robotic manipulation using a robot with just one motor. The drift field provided by gravity can serve as an uncontrolled motor to allow a single-motor robot to throw objects to itself, a simple type of robotic juggling. Similarly, the drift field provided by a conveyor belt can serve as an uncontrolled motor to allow a single-motor robot to feed parts in ...