INTRODUCTION: The present article aimed to study field observations of the 2017 Sefid Sang earthquake, Razavi Khorasan Province, Iran, measuring 6 on the Richter scale with the approach of assessing the behaviors and performing a short analysis on the rescue and relief operations. METHODS: This qualitative study has followed the conceptual analysis approach to research. The sample population w...

The Sargaz granitic intrusion has been emplaced in Sargaz ophiolitic suite, south-east of Sanandaj-Sirjan metamorphic zone, south of Kerman province. The central part of the intrusive body contains pinkish coarse-grained granite, but the fractured northern part, neighboring Chah-Mazraeh fault, has been subjected to pervasive Na-metasomatism and related subsolidus reactions. In the northern alte...

Calculation of the specific charge and specific drilling before a blasting operation plays a significant role in the design of a blasting pattern and the reduction of the final extraction cost of minerals. In this work, the information from the Sungun, Miduk and Chah-Firouzeh copper mines in Iran was assessed, and it was found that there was a significant relationship between the specific charg...

Today, environmental crisis and loss of natural resources are the principle causes of the creation of environmental management systems. The optimal management of natural resources requires the assessment and classification of ecological and environmental potentials. Using this method, the abilities and restrictions of resources can be recognized, and their future trends can be predicted. Nebka ...

Convergent plate margins are arguably the most complicated and dynamic plate boundaries on Earth and have been the subject of many investigations and discussions since the advent of plate tectonic theory. Due to the varied, heterogeneous and complex structure of convergent plate margins, which arises from the multiple geological, physical and chemical processes operating at these zones, and bec...

Background: It is unclear how multiple sclerosis (MS) affects the severity of Covid-19. Methods: Hospitalization, Intensive Care Unit (ICU) admission and death after Covid-19 diagnosis 1362 MS patients were compared to age sex-matched Italian population in a retrospective observational case-cohort study with population-based control. The observed vs expected events whole cohort different sub...