It is the first time that biostratigraphic zonations of calcareous nannoplankton from Maestrichtian to Lower Tertiary deposits of Iran are reported. The required samples from the north-eastem and western parts of the country were selected from the stocks of the National Iranian Oil Company. Taxonomic descriptions were not the main objectives, although a new species and genus are apparently ...

The biggest known mass extinction in the history of animal life occurred at Permian–Triassic boundary and has often been linked to global warming. Previous studies have suggested that a geologically rapid (<40 kyr) temperature increase more than 10°C simultaneously with main pulse. This hypothesis is challenged by geochemical palaeontological data indicating profound environmental perturbations...

51 A Comparison of Multi-Criteria Decision Making Approaches for Maintenance Strategy Selection (A Case Study); Malek Tajadod, Department of Industrial Engineering, Shahid Bahonar University, Kerman, Iran Mohammadali Abedini, Department of Industrial Engineering, Iran University of Science and Technology (IUST), Tehran, Iran Ali Rategari, School of Innovation, Design and Engineering, Mälardalen...

BACKGROUND Hydatidosis is a zoonotic disease of global prevalence. It causes considerable health problems and economic losses throughout the world, including Iran. The objective of this study was to assess the current status of echinococcosis/hydatidosis in the province of Ilam (western Iran). METHODS From April to September 2011, 65 stray dogs were collected from urban and rural areas of Ila...

Clostridium botulinum has long been recognized as an etiological agent of food borne botulism and has been reported as an important food safety hazard. The aim of this study was to obtain information about C. botulinum distribution in north areas sediments of Iran in order to ascertain the risks associated with consumption and processing of fish from these waters. Two hundred and seventy sample...

Background: Depression is the most common mental disorder in individuals with HIV and AIDS (PLWHA), and comorbidity with depression exacerbates the disease. Several studies have estimated the prevalence of depression in HIV and AIDS patients so far, but there is no consensus about the prevalence of depression among these patients. Thus, we aimed at estimating the overall prevalence of depressio...

Changes in symbiont assemblages can affect the success and impact of invasive species, and may provide knowledge regarding the invasion histories of their vectors. Bark beetle symbioses are ideal systems to study changes in symbiont assemblages resulting from invasions. The red turpentine beetle (Dendroctonus valens) is a bark beetle species that recently invaded China from its native range in ...

With the increasing life expectancy, osteoporosis is becoming a major worldwide health problem. The magnitude of the disease may become larger in developing countries, more particularly in the Middle East region where the prevalence of low bone mass is higher than in western countries. Although several local organizations and countries have developed guidelines for osteoporosis, no previous reg...