Artigos científicos, teses e dissertações
Publicados nas melhores instituições de ensino

A 41 year old woman had multiform ventricular tachycardia without QT prolongation. Monophasic action potentials were recorded from the right ventricle during the attacks of multiform ventricular tachycardia and effective refractory periods were examined at the same sites. There w...

In 12 patients with manifest hypothyroidism right atrial monophasic action potentials showed a significant prolongation in comparison with data from normal or euthyroid patients. Atrial effective refractory periods were also significantly prolonged. After thyroid treatment the mo...

In 3 patients with the long QT syndrome, one caused by quinidine and 2 of congenital origin, right ventricular monophasic action potentials were excessively prolonged and of varying shapes in different recording sites. In addition, effective refractory periods of the ventricular ...

1. Simultaneous measurements were made in anaesthetized dogs of monophasic action potentials from the right ventricle and of the maximum rate of rise of left ventricular pressure (dPlv/dtmax). Atrio-ventricular dissociation was induced and the heart paced via right ventricular el...

The purpose of this theoretical research is to analyze the right of action in the Brazilian Civil Process according to the Federal Constitution. It presents the study of constitutionalism and concepts and functions of the constitutions from their origins up to the advent of the D...

The environment of work and the regressive action related accidents are the objects of the present study. The sound environment, including that of the work, is handled by the Federal Constitution of 1988 as a fundamental right, essential to the implementation of the basic princip...

The work presented here is about aspects of the constitutional extension in which is the public civil action with the objective of verifying its aptitute in tutelaging subjective situations derived from fundamental rights, especially right to health assistance. Thus, it offers a ...

1. The tunica media of the proximal segments of the pulmonary vein is made up of cardiac muscle cells. The electrical activity of this cardiac portion of the pulmonary vein was studied with intracellular micro-electrodes in isolated preparations. 2. All-or-none action potentials ...

In this study we intend to discuss and examine the scope of the policy of affirmative action to combat racial inequalities, arising from racist practices in Brazil. Starting from the assumption that, once reduced racial inequalities, it will promote social justice because the res...

1. The effects of extracellular adenosine 5'-triphosphate (ATP) on pulmonary vagal afferent fibres (n = 46) was studied in a canine model in vivo (n = 38). 2. ATP (3-6 mumol kg-1), administered as a rapid bolus into the right atrium, elicited a transient burst of action potential...

This dissertation investigates a kind of class action aimed at the judicial review of public policies related to the realization of social rights for rural workers. It is proposed that an action with the specific aim of promoting the expropriation for agrarian reform by analyzing...

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The text is mainly related to limitation (the juridical institution through which a plaintiff, in view of his/her inerce through the term granted by the law, loses the exigibility as to a given right) along the enforcing phase of a judicial labor procedure. The lesion to rights a...

OBJECTIVE--To characterise electrical restitution in the intact human heart. PATIENTS AND METHODS--A series of monophasic action potential electrical restitution curves were constructed from a single right ventricular endocardial site in eight patients (three men) without structu...

An electrogram was recorded from the angioplasty catheter guide wire when coronary blood flow was interrupted in 20 patients undergoing percutaneous transluminal coronary angioplasty. Monophasic action potentials were recorded from the right ventricular septum together with the r...

Nowadays there is much talk of the (in)efficiency of the judicial process in ensuring the consummation of fundamental rights incumbent on the State, such as the right to education, defined in the republics constitution as a public subjective right at the level of basic education....

This essay aims to study the active legitimation for the labor public civil action execution and tries to demonstrate the importance of the collective legitimation in the accomplishment of the workers metaindividual rights, in order to turn swifter, more economical and more effec...

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A case is reported of complete isolated occlusion of the right pulmonary artery resulting in underperfusion of the right lung; this was confirmed radiographically and at thoracotomy. Bronchospirometry showed that there was a reduction of ventilation to the right lung. When this l...

This report describes the case of a patient with a supraventricular tachycardia with a ventricular rate of 109/min and no visible P waves in the electrocardiogram. The recording of the monophasic action potential of the right atrium disclosed an atrial tachycardia with a rate of ...

Brain-imaging studies have shown that the human Broca's region and precentral motor cortex are activated both during execution of hand actions and during observation of similar actions performed by other individuals. We aimed to clarify the temporal dynamics of this cortical acti...