Background Understanding the relations between the architecture of myocardial fibers, the spread of excitation, and the associated ECG signals is necessary for addressing the forward problem of electrocardiography, that is, predicting intracardiac and extracardiac ECGs from known intracardiac activity. So far, these relations have been studied experimentally only in small myocardial areas. In t...

Bucrylate was injected directly into the cerebral cortical arteries of mongrel dogs. Preparations for light and electron microscopy were obtained from 5 min to 5 months after the introduction of the polymer. A mixed pattern of damage to arterial endothelium was seen, including electron microscopic documentation of stripping away of the endothelium. Acute effects include a subocclusive thromboge...

A heterotopic cardiac transplantation model in which the donor heart was able to maintain the systemic and pulmonary circulation of the recipient was devised, which did not require extracorporeal circulation or heparinization. All donor hearts in five pairs of adult mongrel dogs were resuscitated, and the systemic and pulmonary circulations maintained by the donor hearts alone were studied hemo...

The objective of this article is to present an overview the changes in Brazilian science fiction throughout past decades, which culminated international and national success film Bacurau emergence new subgenres amazofuturismo sertãopunk continuation Causo’s tupinipunk. These are bringing plate topics such as nationalism, decolonization, racism, social justice, globalization, while using pop for...

The paper studies indices of lipid metabolism, immunoglobulins in blood serum heifers different breeds. Black-and-white, Simmental, Aberdeen-Angus, mongrel cattle was selected for this study. Each breed the group consisted 10 heads. study lipids dynamics experimental showed, concentration gradually increased and by 5th month reached maximum values. By end pregnancy on 9th month, a decrease all ...

In an online prediction context, the authors introduce anew class of mongrel criteria that allow for the weighing of candidate models and the combination of their predictions based both on model-based and empirical measures of their performance. They present simulation results which show that model averaging using the mongrel-derived weights leads, in small samples, to predictions that are more...

BACKGROUND Intracarotid propofol infusion was studied in canines as an experimental basis for application of propofol in the Wada test. METHODS First, efficacy and side-effects of propofol anaesthesia were studied in eight mongrel dogs that received intracarotid and i.v. propofol infusions for 30 min according to a cross-over design. Auditory evoked potentials were used to guide anaesthesia. ...

Paravertebral muscles play an important role in the development of deformities and degenerative diseases spine. The impact posterior arthrodesis ileosacral articulation (sacrum-iliac joint) on morphological characteristics m. sacrocaudalis (coccygeus) dorsalis lateralis mongrel dogs was studied animal experiments. Titanium cages were used, followed by stabilization with external fixation device...

Intraventricular administration of angiotensin II (AH), 1 fig, twice a day for 2 weeks, together with saline as the drinking fluid during the second week, resulted in moderate but significant elevation of the arterial pressures of mongrel dogs. This increase in arterial pressure was accompanied by a significant elevation in femoral and renal vascular resistances. However, resting neurogenic ton...