objectives: nowadays, snap-fits are used in the automotive industry as a proper alternative for mechanical joints, cabling joints, and car interior lining joints. due to the special form of these joints, which are assembled manually, the contact area between snap-fits and the worker's fingertips can be too small. this can cause skin pain on the worker's fingertips. therefore, an ergonomic study...

Congenital absence or traumatic amputation of the thumb is a major disability profoundly disturbing the function of the hand, as the thumb represents an estimated 50% of total hand function. The methods for thumb reconstruction utilizing the index finger were developed some twenty years ago, and progress has been made in the last several years with emphasis on intrinsic muscle reconstruction as...

INTRODUCTION Thumb-push manual pipettes are commonly used tools in many medical, biological, and chemical laboratories. Epidemiological studies [1] indicate that the use of pipettes is strongly associated with musculoskeletal disorders (MSDs) in the hand and shoulder. Almost 90% of pipette users, who continuously used the pipettes for more than an hour on a daily basis, reported hand and/or elb...

This reports documents work undertaken in optimising a kinematic model of the human thumb. It is motivated by the high rejection rate observed with myoelectric hand prostheses, which increases with the period of wear and can reach 50% after 5 years. We find that the most commonly-cited reasons for rejecting a prosthesis are its weight, slow actuation speed, and poor durability, whereas the cosm...

Many operations have been described to restore active opposition of the thumb, but all are dependent on the transplant of tendons and their rerouting to fulfil their new function. When there is no motor available for transplant-quite a common problem-the accepted procedure is to unite the first metacarpal bone to the second in the position of opposition. In 193 1 von Baeyer described a method o...

Despite the importance of the thumb to hand function, little is known about the origins of thumb impairment poststroke. Accordingly, the primary purpose of this study was to assess whether thumb flexors have heightened stretch reflexes (SRs) following stroke-induced hand impairment. The secondary purpose was to compare SR characteristics of thumb flexors in relation to those of finger flexors s...

In this paper, we consider a three-way classification approach for Russian movie reviews. All reviews are divided into groups: “thumbs up”, “soso” and “thumbs down”. To solve this problem we use various sets of words together with such features as opinion words, word weights, punctuation marks and polarity influencers that can affect the polarity of the following words. Besides, we estimate the...

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BACKGROUND  Reconstruction of complex soft tissue defects of the thumb, with exposure of tendons, joints or bones, has always been a difficult task. We evaluated the functional and esthetic outcomes of 1st dorsal metacarpal artery island flap in reconstruction of post-traumatic soft tissue defects of the thumb. METHODS Between January 2012 and June 2014, fifteen patients with co...

Introduction. Thumb fingertip injuries, often combined with phalanx fracture or torn ligament, are very common. The focus of treatment is on how to rebuild the function and shape thumb. Single thumb pulp injury more However, due diverse type injury, no uniform guideline described in literature. Case report. A patient extensive incisions, which looked like multiple parallel wounds, was admitted ...