An integrated approach for economic evaluation of environmental and health costs of occupational diseases in the oil industry.

The health sector is one of the components of development, social welfare and economic growth. The purpose of this study was to develop an economic evaluation model of the environmental and health costs of occupational diseases by hybrid approach. To achieve the study goal, a taxonomy of economic evaluation model of the environmental and health costs of occupational diseases has been developed.

An integrated of fuzzy-WASPAS and E-FMEA methods for environmental risk assessment: a case study of petrochemical industry, Iran.

Due to the scope and volume of activities, the petrochemical industry has a high potential for risk to humans and the environment. This study aimed to evaluate the environmental risks caused by the ammonia and urea production process. To screen the risks identified in the follow-up phase, the process hazard analysis (PHA) was used.

Comparative analytical study of the results of environmental risk assessment of urban landfills approach: bowtie, network analysis techniques (ANP), TOPSIS (case study: Gilan Province).

Most landfill projects run in a dynamic and complex environment; therefore, uncertainty and risk are inherent. To improve the performance and reduce the damage caused by waste, risk study and its management have become necessary in implementing landfill location projects. As a result of the biodegradation of organic matter in waste, landfills produce various materials such as leachate, and gas.

Using Artificial Intelligent to Model Predict the Biological Resilience With an Emphasis on Population of cyanobacteria in Jajrood River in The Eastern Tehran, Iran.

Prediction of bio-resilience in water resources such as rivers is important for better management of land-use systems and water resources. This study has proposed the use of artificial intelligent (AI) models for assessing the relationship among the biological conditions in Jajrood River. For this purpose, the qualitative monthly data of the river related to 2008-2018 were applied.

Effect of low-level diode laser on and growth: An invitro study.

Introduction: Caries lesions are high prevalent dental infectious. Gram-positive bacteria are the most common pathogenic microorganisms causing caries lesions. Low-Level laser therapy has been shown to have a significant bactericidal effect without causing damage to the oral tissues.

Ecotourism spatial-time planning model using ecosystem approaches and landscape ecology.

Tourism industry is one of the new fields and new fields studied by various sciences and today it has been considered by countries in various ways. Because the use of tourism potential and capabilities in each region can provide a dynamic and active ground for the development of that region, the study of the potential of these capabilities in terms of geography will be a special necessity. Therefore, the aim of the study was to evaluate and validate a variety of criteria and methods of land capability assessment for tourism and ecotourism.

An evaluation of the marine environmental resilience to the north of Qeshm Island.

There is always an adamant need to comprehend and draw the complex challenges of sustainability in order to help organize studies, due to the increasing human-related pressures on coastal zones. Hence, by formulating such a comprehensive framework, it could be possible to anticipate changes and support managerial decisions, as well as the degree of resilience of the region's environment. One of the approaches utilized in littoral or coastal zones is the conceptual framework of drivers, pressure, status, impact, and responses (DPSIR).

A comparative study on the stress distribution around dental implants in three arch form models for replacing six implants using finite element analysis.

Background: Dental implant is a method to replacement of missing teeth. It is important for replacing the missed anterior teeth. method is a safe method for evaluation of stress distribution.

Investigation of The Association between Salivary Procalcitonin Concentration and Chronic Periodontitis.

Objective: Chronic periodontitis is the most common form of periodontal disease. Chang- es in biomarkers seem to be associated with the disease progression. Procalcitonin (PCT) is one of these biomarkers that are altered during infection.

Salivary Interferon Gamma and Interleukin-4 Levels in Patients Suffering from Oral Lichen Planus.

Objective: Oral lichen planus (OLP) is a chronic inflammatory disease. Immunological factor may act as etiological factor. The cellular immune cells such as T cells are impor- tant in pathogenesis.

Comparison of the Antibacterial Properties of Three Mouthwashes Containing Chlorhexidine Against Oral Microbial Plaques: An in vitro Study.

Background: The mouth provides an environment that allows the colonization and growth of a wide variety of microorganisms, especially bacteria. One of the most effective ways to reduce oral microorganisms is using mouthwashes.

Objectives: The aim of this study was to investigate the antibacterial effects of chlorhexidine mouthwashes (manufacture by Livar, Behsa, Boht) on common oral microorganisms.

Evaluation of salivary tumor necrosis factor-alpha in patients with the chronic periodontitis: A case-control study.

Context: Periodontitis is a chronic infectious disease that leads to inflammation of the tissues supporting the teeth, bone loss, attachment loss progressively. In chronic periodontitis for starting the host response and inflammatory reaction, the presence of the infectious agent is necessary.

Aims: One of inflammatory factors is tumor necrosis factor-alpha (TNF-α) that appear to be important in the destruction of periodontal tissues that were examined in this study.

A comparison of magnetostrictive and piezoelectric ultrasonic scaling devices: an in vitro study.

Purpose: The effects of magnetostrictive and piezoelectric devices on tooth surfaces seem to differ with regard to the root surface roughness they produce. This study aimed to compare the results of scaling using magnetostrictive and piezoelectric devices on extracted teeth.

Methods: Forty-four human extracted teeth were assigned to four study groups (n=11).

Comparison of salivary antioxidants in healthy smoking and non-smoking men.

Background: Tobacco use is known as a serious global public health problem, and is also an important risk factor for oral diseases. Saliva is the first biological medium encountered during inhalation of cigarette smoke. Therefore, the main aim of this study was to compare the levels of salivary antioxidants between healthy smoking and non-smoking men.

Detection of IL-4, IL-6 and IL-12 serum levels in generalized aggressive periodontitis.

Background: Periodontitis is a multifactorial chronic inflammatory disease characterized by destruction of tooth-supporting tissues. Environmental and genetic factors as well as the immune system participate in this process. Recent studies have attempted to elucidate the role of cytokine networks involved in periodontal diseases.