STRESS CONCENTRATORS POSITIONING MODES AND DETERMINATION OF THE STRESS CONCENTRATION FACTOR USING FEM. ESTABLISHING CRACKING SCENARIOS TO DETERMINE THE CHARACTERISTICS OF THE CRACK

This paper shows the effects of variable stresses acting on structures, the positioning modes of stress raisers, as well as the determination of stress concentration factor and the establishment of some cracking scenarios in order to determine the main characteristics of the crack.The problem of numerical analysis of various engineering problems is

Evolutionary theories posit that emotions prime organisms for action.This study examined whether corticospinal excitability (CSE) is modulated by the emotional valence of a to-be-grasped stimulus.CSE was estimated based on Scrapers the amplitude of motor evoked potentials (MEPs) elicited using transcranial magnetic stimulation (TMS) and recorded on

Total organic carbon (TOC) and total nitrogen (TN) concentration in the soil are an indicator of soil degradation.To understand how land-use may impact these concentrations in seasonally dry tropical forests (SDTF), we analyzed the effect of four land-uses on TOC stocks (STK.TOC) and TN stocks (STK.TN) in a semi-arid region of Brazil.Soil samples w

In this study we analyzed the microanatomy of the dorsal vessel of the triatomine Panstrongylus megistus.The organ is a tuble anatomically divided into an anterior aorta anad a posterior heart, connected to the body wall through 8 pairs of alary muscles.The heart is divided in 3 chambers by means of 2 pairs of cardiac valves.a pair of ostia can be