A two-part experiment was designed to test the hypothesis that myocardial oxygen and carbon dioxide tensions, as measured by coronary venous oxygen and carbon dioxide tensions, determine coronary blood flow during increases in myocardial oxygen consumption. The left main coronary artery was pump-perfused at constant pressure in closed-chest, anesthetized dogs. Oxygenators in the perfusion circu...

We conducted twenty semi-structured interviews with university professors from eight states in the US about their collaborations via computer mediated communication. Our thematic analysis of verbatim transcripts uncovered four dialectical tensions (an interplay of opposing and contradictory forces typically resolved through communication) in such interactions: relational connection and personal...

We consider a generalisation of the DGP model, by adding a second brane with localised curvature, and allowing for a bulk cosmological constant and brane tensions. We study radion and graviton fluctuations in detail, enabling us to check for ghosts and tachyons. By tuning our parameters accordingly, we find bigravity models that are free from ghosts and tachyons. These models will lead to large...

Objectives: The burden of smoking on the health system and society is significant. The current study aimed to estimate the annual direct and indirect costs of smoking in Iran for the year 2014. Methods: A prevalence-based diseasespecific approach was used to determine costs associated with the three most common smoking-related diseases: lung cancer (LC), chronic obstructive pulmonary disease (C...

There are many approaches in analyzing the prolonged Iran–US impasse. We can taxonomize them into objective and subjective perspectives. explain tension for realistic geopolitical reasons. But discourse analysis is a approach that maintains social facts constructed discursive way by players. This article aims to provide overview of how definition terrorism has been influenced divergent discours...

Normative critiques of South-South relations assess the extent to which solidarity and cooperation are achieved among partner countries. However, they tend to overlook the role of inter-ethnic tensions in partnerships and the ways global South actors exercise agency in achieving cooperation. Transnational skilled migration between global South countries is an emerging context where South-South ...

We prove that a GF(q)-linear Rédei blocking set of size qt + qt−1 + · · · + q + 1 of PG(2, qt ) defines a derivable partial spread of PG(2t − 1, q). Using such a relationship, we are able to prove that there are at least two inequivalent Rédei minimal blocking sets of size qt + qt−1 + · · · + q + 1 in PG(2, qt ), if t ≥ 4.