The objectives of this study were to evaluate how lifting capacity and subjective preferences are affected by different lifting speeds. The maximum lifting capacity of lift was determined with three independent variables, lifting speed, lifting technique, and lifting height. Questionnaires were evaluated after the experiment by the participants for the lifting speed preferences. This study foun...

Purpose: Low back pain is one of the most common musculoskeletal disorders, and lifting is one of its risk factors. The activities of lumbar muscles as the main muscles involved in lifting are important with regard to identification of the allowable limits and the injury mechanisms as well as the motor control aspects. This study aimed to investigate the effects of the lifting speed on the lumb...

In the normal heart, the atrio-ventricular node (AVN) is responsible for the appropriate atrio-ventricular delay. Most of the slow conduction in AVN is probably caused by the small number of gap junctions connecting the myocytes [1]. Experimental and theoretical studies show that although conduction velocity decreases by reducing gap junctions, in such conditions safety factor increases [2]. Di...

BACKGROUND The causes of sustained monomorphic ventricular tachycardia (VT) after cardiac valve surgeries have not been studied extensively, although bundle-branch reentry has been reported. METHODS AND RESULTS Records of 496 patients referred for electrophysiology study and catheter ablation of recurrent VT were reviewed. Twenty patients (4%) had VT after aortic or mitral valve surgery in th...

By using a Langendorff-perfused ring of anisotropic rabbit epicardium, sustained reentrant ventricular tachycardia with a cycle length of 168 +/- 13 msec (n = 26) was induced by programmed electrical stimulation. Continuous left ventricular epicardial mapping with 256 simultaneously recorded unipolar electrograms demonstrated that the tachycardia was based on circuital movement of the impulse a...

Several large evaluations of correctional programs across the United States have found that offender assessment is one of the most poorly implemented principles of effective offender intervention. Correctional programs have relied too much on subjective, clinical assessments of offenders’ likelihood of re-offending or risk, and specific risk factors. Corrections programs have neglected one of t...

The scientific study of wrongful convictions has been ongoing for the past few decades. These studies have worked to quantify convictions, identify contributing factors, and understand negative implications society individuals who experiences a incarceration. majority existing focus on what leads conviction, with fewer examining community reentry processes wrongfully convicted individuals. Thos...

PURPOSE To present a technique that creates a neofenestration in the dissecting lamella of chronic aortic dissections using standard or intravenous ultrasound (IVUS)-guided reentry devices. TECHNIQUE To create a neofenestration, a standard or IVUS-guided reentry device is deployed in either the true or false aortic lumen while a balloon is simultaneously inflated in the opposite lumen to stab...

Electrical pacing is a common procedure in both experimental and clinical settings to study and/or annihilate anatomical reentry. A previous study [Comtois and Vinet, Chaos 12, 903 (2002)] has described new ways to terminate reentry in a one-dimensional loop model by a protocol consisting of only two stimulations. Annihilation of the reentrant activity was much more likely with these new scenar...

AIMS Acute ischemia is a major cause of sudden arrhythmic death, further promoted by potassium current blockers. Macro-reentry around the ischemic region and early afterdepolarizations (EADs) caused by electrotonic current have been suggested as potential mechanisms in animal and isolated cell studies. However, ventricular and human-specific arrhythmia mechanisms and their modulation by repolar...