pound depressed fracture on the right side of the head, rather in front of the upper part of the coronal suture. The patient was unable to speak, but he looked quite intelligent, and carried out various actions, such as putting out his tongue, raising his hand, etc., when asked to do so. Under chloroform, it was found necessary to remove two circles of bone and an intervening bridge before the ...

Numerous natural and human-made systems can be described as nonlinear or complex. Such systems often escape the straight cause-effect and linear modeling patterns which traditional science has successfully used over centuries. Linear approximations of dynamic phenomena rarely deliver satisfactory results. On the other hand, nonlinear modeling techniques became feasible and more popular only wit...

It is much useful of the unstructured environment which the objects in it are unfamiliar to use human-robot interaction in remote teleoperation of robot manipulator. Traditionally, contacting mechanical devices under the interactive method can restrict the operator’s motion. While camera-based tracking has the benefit of being non-contacting, previous vision-based approaches have used only few ...

more active at the present day; but both for the historian and the physician it is desirable to have at hand concise descriptions of the prevalence of epidemics in their chronological order. In the short space of 450 pages are crowded a vast mass of facts, gathered both from contemporary and modern writers. Thus the recent works of Jessopp and Gasquet are laid under contribution for the outline...

We investigated worker policing by egg eating in the ponerine ant Pachycondyla inversa, a species with morphologically distinct queens and workers. Colonies were split into one half with the queen and one half without. Workers in queenless colony fragments started laying unfertilized male eggs after three weeks. Worker-laid eggs and queen-laid eggs were introduced into five other queenright col...

BACKGROUND This paper is a comment on the idea of matrix-free Cladistics. Demonstration of this idea's efficiency is a major goal of the study. Within the proposed framework, the ordinary (phenetic) matrix is necessary only as "source" of Hennigian trees, not as a primary subject of the analysis. Switching from the matrix-based thinking to the matrix-free Cladistic approach clearly reveals that...

Worker honeybees, Apis mellifera, police each other's reproduction by killing worker-laid eggs. Previous experiments demonstrated that worker policing is effective, killing most (∼98%) worker-laid eggs. However, many queen-laid eggs were also killed (∼50%) suggesting that effective policing may have high costs. In these previous experiments, eggs were transferred using forceps into test cells, ...