This volume completes the authors' survey of semigroup theory begun in 1961 with the
appearance of Volume I, and deals with branches of the theory not covered in the first volume …

Two alternative characterizations of semidirect products of semigroups are given.
Characterizations are provided of such products that are groups, regular semigroups, and …

Objective To review the Michigan Spine Surgery Improvement Collaborative registry to
investigate the long-term associations between current smoking status and outcomes after …

Introduction This study examined the efficacy of manual therapy for pain and disability
measures in adults with sacroiliac joint pain syndrome (SIJPS). Methods We searched six …

Rupture of the distal biceps tendon most commonly is secondary to mechanical overload
during eccentric muscle contraction. Due to deficits of strength and endurance, surgical repair …

The number of spinal procedures and spinal fusions continues to grow. Although fusion
procedures have a high success rate, they have inherent risks such as pseudarthrosis and …

Proof. By condition (1), there are elements e, xeS, such that ea= a, ax= e. Let f= xa. Then af=
a (xa)=(ax) a—ea= a, and ya= f has the solution x. That f2=/has already been shown. The …

Vertebral augmentation has been a well-studied adjunct percutaneous procedure in spine
surgery. Cement augmentation has been used in the treatment of compression fractures …

We give a survey of some of the realisations that have been given of monogenic inverse
semigroups and discuss their relation to one another. We then analyse the representations by …

Purpose Early onset scoliosis (EOS) is defined as spinal curvature affecting children below
10 years of age. Non-operative treatment can consist of casting and bracing. When curvature …