OBJECTIVE To determine the incidence, cause, and prevention of horizontal canal benign paroxysmal positional vertigo (H-BPPV) and reentry into the common crus during canalith repositioning procedures (CRPs). STUDY DESIGN Prospective case series. SETTING Academic tertiary referral center. PATIENTS Forty-four patients with symptomatic posterior canalithiasis (P-BPPV) confirmed on Dix-Hallpi...

Let $M$ be a right module over a ring $R$, $tau_M$ a preradical on $sigma[M]$, and$Ninsigma[M]$. In this note we show that if $N_1, N_2in sigma[M]$ are two$tau_M$-lifting modules such that $N_i$ is $N_j$-projective ($i,j=1,2$), then $N=N_1oplusN_2$ is $tau_M$-lifting. We investigate when homomorphic image of a $tau_M$-lifting moduleis $tau_M$-lifting.

Within multimodal prisoner reentry programs, an important challenge for practitioners is how to effectively assign participants to services based on individual need. The Reentry Well-Being Assessment Tool (RWAT) is an innovative practice tool to systematically guide individualized assignment into reentry program services based on a participant’s changing needs during the transition from prison ...

Having found the regional differences in right atrial action potentials shown in an accompanying article, we tested two seemingly paradoxical hypotheses: 1) The spatial pattern of repolarization provides a protective mechanism against reentry, and 2) repolarization inhomogeneities interact with anisotropic discontinuous propagation to produce reentry. Measurement of multidimensional refractory ...

The aim of this work was to analyze the vulnerability to reentry in a two-dimensional sheet of regionallyischemic and anisotropic myocardial tissue at different stages of acute myocardial ischemia. We used computer modelling in order to elucidate the main factors responsible for initiation and maintenance of reentry. Simulations were carried out using a modified version of the Luo-Rudy-II model...

BACKGROUND A line of block in the right atrium (RA) between the venae cavae is necessary to obtain classic atrial flutter (AFL). We tested the hypothesis that the location of that line of block would determine whether the AFL reentrant circuit would be due to single-loop reentry or figure-of-8 reentry. METHODS AND RESULTS Simultaneous mapping from 392 sites (both atria and the atrial septum) ...

This study explored how gender differences may influence the community reentry experiences of incarcerated youth. Structured surveys assessing risk factors for re-offending, perceived reentry needs, and anticipated barriers to meeting these needs were administered to a convenience sample of males (n = 36) and females (n = 35) who were within 60 days of release from two probation camps in Southe...

In a sufficiently short reentry pathway, the excitation wave front (head) propagates into tissue that is partially refractory (tail) from the previous action potential (AP). We incorporate a detailed mathematical model of the ventricular myocyte into a one-dimensional closed pathway to investigate the effects of head-tail interaction and ion accumulation on the dynamics of reentry. The results ...

background: manual load lifting is the most common and stressful activity that imposes high biomechanical pressures on the body, particularly on the back. diverse studies have shown that load lifting can cause work-related musculoskeletal disorders among workers. this study was conducted to assess manual lifting activity using niosh equation and wisha index and compare the results of the two me...