We extensively studied serigraphic screen-printed commercial silver flake inks loaded with silicon inclusions in order to achieve pinning at the grain boundaries. Based on grain size measurements using electron backscattered diffraction (EBSD), commercial silver ink with silicon microparticle content of 5 wt.% shows significant grain growth retardation compared to pristine silver ink, which stabilizes electrical conductivity up to 700 °C via a Zener pinning mechanism.
View Article and Find Full Text PDFBackground: Helmet use has been introduced as one of the most highlighted strategies for preventing death and injury in motorcyclists. On the other hand, the cost of the helmet was introduced as a barrier to use. This study aimed at estimating the willingness to pay (WTP) of motorcyclists in Saqqez to buy and use safety helmets through the contingent valuation method (CVM).
View Article and Find Full Text PDFBackground And Aim: Taxi drivers play a significant role in urban mobility and safety as professional drivers. They typically have poor incomes, long work hours, lack of sleep, and high levels of stress, which increase the risk of physical and mental illnesses. The goal of this study was to explore the relationship between sleep disorders and depression among Tabriz metropolis taxi drivers.
View Article and Find Full Text PDFBackground: Online reporting systems can establish and maintain the community-authority connection for safety promotion initiatives and their sustainability. The aim of this study was to report the development, implementation, and evaluation of an online community safety reporting system in safe communities in Iran.
Methods: In the first place, the life cycle approach and software systems development were used for design and implementation, which included 7 steps.
Background: Vaccination is one of the best ways to stop the transmission of coronavirus disease 2019 (COVID-19). In this regard, uunderstanding the features related to the intention of different populations to receive the COVID-19 vaccine is essential for an effective vaccination program. This study aimed to investigate the vaccination intention predictors in the general adult population of Iran.
View Article and Find Full Text PDFBackground: This study has been conducted to analyze the processes, models, and policies to assess fitness to drive and improving driving in the elderly in the world.
Methods: The Arkesy and O'Malley frameworks were employed. Articles with at least one aspect of driving eligibility in the elderly were included.
Background: Public trust is a crucial concept in the COVID-19 pandemic, which determines public adherence with preventive rules as a success factor for disease management. This study aimed to develop and validate a tool to measure public trust in COVID-19 control and prevention policies (COV-Trust tool).
Methods: This is a psychometric study that was conducted in 2020 (March-August).
Purpose: This study aimed to compare the effect of forced-air warming and warmed intravenous fluid on the comfort and prevention of shivering after spinal anesthesia in patients undergoing orthopaedic surgery.
Design: Randomized controlled clinical trial.
Methods: A total of 120 patients were randomly divided into three groups: forced-air warming (38°C), warmed intravenous fluid (37°C), and the control group.
Background: Road traffic crashes and associated injuries and mortalities are one of the big public health challenges, especially in low/middle-income countries. Road safety lead agency (RSLA) is a vital factor in the sustainable prevention and promotes road safety. In the recent decades, various policy interventions have been conducted for road safety in Iran.
View Article and Find Full Text PDFBackground: On March 11, 2020, the World Health Organization (WHO) proclaimed Coronavirus Disease of 2019 (COVID-19) a pandemic. In addition to severe health problems, the disease has had a major psychological impact on the public. The aim of this research was to examine the association between Post-Traumatic Stress Disorder (PTSD) related to COVID-19 in emergency staff and self-compassion and perceived social support.
View Article and Find Full Text PDFObjectives: COVID-19 patients develop Life-threatening complications like pneumomediastinum/pneumothorax and emphysema which might experience prolonged hospital stays and additional costs might be imposed on the patient and the health system. The clinical features and outcomes of mechanically ventilated patients with COVID-19 infection who develop a pneumothorax, pneumomediastinum and subcutaneous emphysema has not been rigorously described or compared to those who do not develop these complications. So a systematic review of studies conducted on this subject was carried out to better manage these complications by investigating the underlying factors in COVID-19 patients.
View Article and Find Full Text PDFBackground: Road traffic crashes (RTCs) and its associated injuries are one of the most important public health problems in the world. In Iran, RTCs rank second in terms of mortality. To address this issue, there is a need for research-based interventions.
View Article and Find Full Text PDFBackground: Patients with a type D personality have worse social functioning and mental health and more affective constraints than non-type D personalities. They have a negative outlook on life and health-related issues. The aim of this study was to examine the mediating role of stress and anxiety in the relationship between type D personality and COVID-19 by adjustment of the effect of demographic characteristics and perceived symptoms as confounder variables.
View Article and Find Full Text PDFBackground: The aim of this study was to assess the lifestyle behaviour and risk factors for lifestyle-related diseases in East Azerbaijan province, Iran.
Methods: A household study using a two-stage cluster sampling method was performed. Tabriz city was randomly selected for data collection among five geographic regions in the East-Azerbaijan province.
Herein, a robust Pd(II)-based polyfunctional magnetic amphiphilic artificial metalloenzyme was prepared by anchoring a Pd(2,2'-dipyridylamine)Cl bearing hydrophilic monomethyl ether poly(ethylene glycol) (mPEG) chains on the surface of amino-functionalized silica-coated magnetic nanoparticles. The 2,2'-dipyridylamine (dpa) has shown excellent complexation properties for Pd(II) and it could be easily anchored onto functionalized magnetic support by the bridging nitrogen atom. Moreover, the bridging nitrogen atom at the proximity of Pd(II) catalytic center could play an important role in dynamic suppramolecular interactions with substrates.
View Article and Find Full Text PDFIn the present study, the effect of homogenization and solution treatment times on the elevated-temperature (650 °C) mechanical properties and the fracture mechanisms of Inconel 718 (IN718) superalloy fabricated by laser powder bed fusion (LPBF) was investigated. Homogenization times between 1 and 7 h at 1080 °C were used, while solution treatments at 980 °C were performed in the range from 15 to 60 min. The as-printed condition showed the lowest strength but the highest elongation to failure at 650 °C, compared to the heat-treated conditions.
View Article and Find Full Text PDFBackground: Measuring self-care ability in elderly people needs specific instruments. The Self-care Ability Scale for Elderly (SASE) is one of the common instruments used for assessing self-care ability. The aim of this study was to assess the psychometric properties of the SASE among Iranian elderly population.
View Article and Find Full Text PDFBackground: Healthy city and safe community programs are the most common initiatives gaining increasing appeal in various communities to improve safety and health, independently. The aim of this study was to develop a joint application model of safe community and healthy city.
Methods: A comprehensive literature review was conducted on healthy city and safe community programs using PubMed, Web of Science, Scopus and Science Direct and also related websites such as WHO regional offices in 2018.
Background: Primary Health Care (PHC) was introduced as the first level of health services delivery after Alma-Ata declaration. However, after forty years, it needs to be more trustful to achieve its predefined objectives. Public trust in PHC is one of the neglected issues in the context.
View Article and Find Full Text PDFBackground: Unintentional injuries in the home are one of the threats to childhood quality of life which is considered as a social determinant of health. Regarding mother's leading role in taking care of the children in Iranian families, the present study was conducted to investigate mothers' home-injury prevention attitude and performance and its contributing factors in Sahand safe community, East-Azerbaijan, Iran.
Methods: This was a cross-sectional study conducted in 2017.
In the present study, Inconel 718 (IN718) superalloy fabricated by laser powder bed fusion (LPBF) has been characterized focusing on the effect of both homogenization and solution treatment time on grains structure, crystallographic texture, precipitates formation/dissolution and material hardness. For this purpose, a heat-treatment time window with a wide range of soaking times for both treatments was established aiming to develop the optimal post-treatment conditions for laser powder bed fused IN718. It was found that the as-printed IN718 is characterized by very fine columnar/cellular dendrites with Laves phase precipitating at the grain boundaries as well as inter-dendritic regions, which differs from the microstructure of wrought and cast materials and requires special heat-treatment conditions different from the standard treatments.
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