Stable myoelectric control of hand prostheses remains an open problem. The only successful human-machine interface is surface electromyography, typically allowing control of a few degrees of freedom. Machine learning techniques may have the potential to remove these limitations, but their performance is thus far inadequate: myoelectric signals change over time under the influence of various fac...

It is still challenging to achieve a complex grasp or fine finger control by using surface functional electrical stimulation (FES), which usually requires a precise electrode configuration under laboratory or clinical settings. The goals of this study are as follows: 1) to study the possibility of selectively activating individual fingers; 2) to investigate whether the current activation thresh...

Extreme self-neglect is a problem amongst a small but significant proportion of the population. The hand surgeon encounters cases of acute digital ischemia with a wide spectrum of aetiologies. These include thrombosis, trauma and iatrogenic causes.1 A hoarding disorder is characterised by an individual who acquires an excessive number of items and stores them in a chaotic manner.2 Hoarding is a...

For enveloping an object placed on a table, human often utilizes the wedge—effect where a simple pushing motion of the bottom part of object makes the object detach from the table. Through grasp experiments by human, we newly found an interesting behavior where human changes his (or her) finger posture from upright to crooked ones after all fingers make contact with the object. This motion is t...

Smart recognition of human identity for security and control is a global issue of concern in our world today. Financial losses due to identity theft can be severe, and the integrity of security systems compromised. Hence, automatic authentication systems for control have found application in criminal identification, autonomous vending and automated banking among others. Among the many authentic...

OBJECTIVES Patients without voluntary finger extension early post-stroke are suggested to have a poor prognosis for regaining upper limb capacity at 6 months. Despite this poor prognosis, a number of patients do regain upper limb capacity. We aimed to determine the time window for return of voluntary finger extension during motor recovery and identify clinical characteristics of patients who, d...

We report measurements of two dimensional radial fingering in viscoelastic concentrated suspensions (pastes) of colloidal particles, in small surface tension conditions. The displacement efficiency, the average finger width and the fractal dimension for growth have been measured in a broad range of paste viscosity and driving pressure. The growth process appears to be fractal in all the experim...

commercial utilization of black mouth croaker (atrobucca nibe) is in progress in iran. this study was carried out to assess the physicochemical and sensory evaluation of minced fish and surimi prepared from small size of a. nibe, which is not common for human consumption. the surimi proximate composition contains protein (14.77±0.506%), lipid (0.94±0.081%), ash (0.58±0.007%) contents and yield ...

Snapping finger is frequently encountered in orthopeidic diagnosis a:r:d treatment, and frequently experienced as cases of minor surgical operation of the hand. Cases of snapping finger generally are broadly classified into infantile cases and adult cases by their operative findings. The former is caused by formation of tumor by the flexor pollicis longus tendon itself at the entrance of the te...