in this paper‎, ‎we study convergence behavior of the global fom (gl-fom) and global gmres (gl-gmres) methods for solving the matrix equation $axb=c$ where $a$ and $b$ are symmetric positive definite (spd)‎. ‎we present some new theoretical results of these methods such as computable exact expressions and upper bounds for the norm of the error and residual‎. ‎in particular‎, ‎the obtained upper...

the editorial by jeremy shiffman, “knowledge, moral claims and the exercise of power in global health”, highlights the influence on global health priority-setting of individuals and organizations that do not have a formal political mandate. this sheds light on the way key functions in global health depend on private funding, particularly from the bill & melinda gates foundation.

life in the modern world means existing with the evolving face of modern warfare and global terrorism. we have disasters both man-made disasters, natural. man has devised weapons of mass destruction, which in the hands urban terrorists can cause blasts, building collapses. resulting in a unique pattern of damage to the human body namely, crush injuries “crush syndrome” first recorded in bombing...

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original article   introduction: direct sunlight and increased heat load influence mental and physical health of workers negatively and result in performance impairment. activity reduction is a natural body response to increase in internal body temperature, and a compensatory mechanism to make body balanced. this study was carried out to estimate productivity loss due to heat exposure among ira...

climate change disturbs the distribution of precipitation patterns and affects water resources. a lot of evidences imply that the increased atmospheric concentration of greenhouse gasses in turn increases the precipitation changes around the world. thus, since iran is located in an arid zone of the earth, identifying the effects of co2 concentrations on iran precipitation rate is highly importa...

the present study is an attempt to provide a current synopsis of world englishes within globalized communities, as well as theoretical and applied feasibility of global linguistic features of english as an international language (eil). to do so, first, three main reactions against the spread of english by scholars around the world are discussed. then, the possibility of describing and teaching ...

global warming is one of the major concerns in environmental issues. its effects are being exposed faster than anticipated recently. it causes adverse ecological and socioeconomical effects. the 4th assessment report issued by the u. n.’s intergovernmental panel on climate change (ipcc) states that it is appropriate to define global warming was caused by greenhouse gases due to human activities...

in his recent commentary, gorik ooms argues that “denying that researchers, like all humans, have personal opinions … drives researchers’ personal opinion underground, turning global health science into unconscious dogmatism or stealth advocacy, avoiding the crucial debate about the politics and underlying normative premises of global health.” these ‘unconscious’ dimensions of global health are...