Majid Farhadi

• Ahvaz Jundishapur University of Medical Sciences

Heavy metals (HMs) may cause the generation of reactive oxygen species (ROS), which results in oxidative stress and eventually leads to an increase in cardiovascular diseases (CVD). The Hoveyzeh Cohort Study Center provided clinical data for cardiovascular cases. The collection of samples was done randomly. The association between CVD and HMs has b...

In Iran's biggest towns, deaths and hospitalizations from respiratory and cardiovascular diseases have a strong association with PM2.5 pollution concentrations. The WHO recommends assessing the health impacts using the Air Quality and Health Evaluation approach (Air Q 2.2.3). Data of particulates on both clear, dusty days have been provided by the...

Introduction Dusty storms considerably increase airborne particles in dry and semi-dry locations, such as deserts with no plants and strong winds. Therefore, the environment and people are affected severely. Ahvaz, an important metropolis, is often polluted by neighboring nations. The present research studies the concentration, source, and calculat...

Background We aimed to verify the exposure to mercury in the air and its effect on cardiovascular disorders. Methods The review was conducted using PubMed, Scopus, Web of Science, Embase, and national databases (such as SID) from 1995–2022. Results Mercury exposure can cause many disorders in humans, including neurodevelopmental disorders in fetu...

Pollution by heavy metals is a serious global problem due to its toxicity, abiotic characteristics, abundant sources, and cumulative behavior. On the other hand, considering the importance of rice consumption as an important part of nutrition in Lordegan and Ahvaz cities, this study was conducted to evaluate the carcinogenic risk of heavy metals le...

Arsenic (As) is a highly toxic and carcinogenic element. Drinking water and some foods (for example, rice, cereals, or fruit juices) are major sources of arsenic. Chronic arsenic poisoning, or arsenicosis, causes internal disorders, such as liver damage, as well as cancers. The purpose of this review study was to examine the epidemiological literat...

PAE and PC polymers, such as BPA, are utilized to make water bottles. Due to the lack of polymer-chemical interaction, PAE can enter drinking bottles during production, wrapping, and keeping. Phthalates can transfer from the bottle to the water depending on keeping conditions (temperature, time, sunlight intensity), pH, and bottle capacity. Since t...

Introduction People are continuously exposed to contamination, which mainly consists of heavy metals (HMs) and organic compounds. Several metals can get into grains, veggies, and bread through various methods. We estimated the health risk of HM exposure from the consumption of bread, veggies, and rice, considering the per capita amounts of these fo...

Introduction Heavy metals can enter the environment and food through industrial activities, acid rain, chemical fertilizers, pesticides, and sewage. A large amount of these metals is dangerous because they tend to bio accumulate. A concern with these metals is the long-term, low-dose exposure seen in the general population. HMs can cause disorders...

Background & Aims: The quality of drinking water includes the microbial, chemical and physical parameters of water, and nonstandard values of these parameters cause water pollution. Water improvement has a direct relationship with the reduction of infectious diseases. The aim of this study was to Investigating and determining the critical points Ah...

The minimum linear ordering problem (MLOP) generalizes well-known combinatorial optimization problems such as minimum linear arrangement and minimum sum set cover. MLOP seeks to minimize an aggregated cost $$f(\cdot )$$ f ( · ) due to an ordering $$\sigma $$ σ of the items (say [ n ]), i.e., $$\min _{\sigma } \sum _{i\in [n]} f(E_{i,\sigma })$$ min...

Background Heavy metals in street dust are one of the most important sources of pollutants in urban areas. This urban dust can be caused by industrial activities, traffic, erosion of buildings, and fossil fuels. The aim of this systematic review is to evaluate the ecological risk of heavy metals in the dust of Iran's provinces. Methods This study...

Context: Polycyclic aromatic hydrocarbons (PAHs) are pollutants that are among the most important risk factors for cancer, especially in individuals with underlying diseases. On the other hand, various types of cancers in the vital organs of the body, including the liver, lung, and bladder, and diseases related to the nervous system can be attribut...

Context: Arsenic has metallic and non-metallic properties. It is widely found in sulfide ores and belongs to the nitrogen family. Arsenic is used as an insecticide due to its high toxicity. Arsenic has caused many environmental concerns, including the widespread availability of arsenic in the environment, biological toxicity, and exploitation. Pote...

The current outbreak of the novel coronavirus SARS‐CoV‐2 (coronavirus disease 2019; previously 2019‐nCoV), epicenter in Hubei Province (Wuhan), People’s Republic of China, has spread too many other countries. The transmission of the corona virus occurs when people are in the incubation stage and do not have any symptoms. Therefore, the role of envi...

Objectives: The purpose of this review study was to assess the risk of exposure to BTEX compounds in gas station workers and operators. Content: The main components of BTEX compounds are Benzene, Toluene, Ethyl benzene and Xylene. Petroleum, coal large quantities in crude oil and its products are the most important sources of BTEX compounds. The...

Sulfur dioxide (SO2) is one of the most important gaseous air pollutants and the chemical index of sulfur oxides (SOx). SO2 is one of the six criteria pollutants in the air quality index (AQI). SO2 can be emitted by natural and anthropogenic sources. Although efforts have been made to reduce sulfur dioxide emissions worldwide, this pollutant and it...

The cost due to delay in services may be intrinsically different for various applications of vehicle routing such as medical emergencies, logistical operations, and ride-sharing. We study a fundamental generalization of the Traveling Salesman Problem, namely $L_p$ TSP, where the objective is to minimize an aggregated measure of the delay in service...

We study the Quantum Approximate Optimization Algorithm ( QAOA ) in the context of the Max-Cut problem. Noisy quantum devices are only able to accurately execute QAOA at low circuit depths, while classically-challenging problem instances may call for a relatively high circuit-depth. This is due to the need to build correlations between reachable pa...

The minimum linear ordering problem (MLOP) seeks to minimize an aggregated cost $f(\cdot)$ due to an ordering $\sigma$ of the items (say $[n]$), i.e., $\min_{\sigma} \sum_{i\in [n]} f(E_{i,\sigma})$, where $E_{i,\sigma}$ is the set of items that are mapped by $\sigma$ to indices at most $i$. This problem has been studied in the literature for vario...

A correction to this paper has been published: https://doi.org/10.1007/s10653-021-00962-7

We introduce the $L_p$ Traveling Salesman Problem ($L_p$-TSP), given by an origin, a set of destinations, and underlying distances. The objective is to schedule a destination visit sequence for a traveler of unit speed to minimize the Minkowski $p$-norm of the resulting vector of visit/service times. For $p = \infty$ the problem becomes a path vari...

: Air pollution exposure is one of the main risk factors for respiratory system diseases, including airway diseases, Chronic Obstructive Pulmonary Disease (COPD), and lung cancer. Few studies have been done concerning Interstitial Lung Disease (ILD) and its relationship with air pollution. Particulate Matter (PM10), sulfur dioxide (SO2), nitrogen d...

We study the Quantum Approximate Optimization Algorithm (QAOA) in the context of the Max-Cut problem. Near-term (noisy) quantum devices are only able to (accurately) execute QAOA at low circuit depths while QAOA requires a relatively high circuit-depth in order to "see" the whole graph. We introduce a classical pre-processing step that initializes...

We study the generalized min sum set cover (GMSSC) problem, wherein given a collection of hyperedges $E$ with arbitrary covering requirements $k_e$, the goal is to find an ordering of the vertices to minimize the total cover time of the hyperedges; a hyperedge $e$ is considered covered by the first time when $k_e$ many of its vertices appear in the...

Twenty years ago, Bobkov, Houdr\'e, and the last author introduced a Poincar\'e-type functional graph parameter, $\lambda_\infty(G)$, of a graph $G$, and related it to the {\em vertex expansion} of $G$ via a Cheeger-type inequality. This is analogous to the Cheeger-type inequality relating the spectral gap, $\lambda_2(G)$, of the graph to its {\em...

Introduction Nitrogen dioxide (NO2) can penetrate deeply into the sensitive parts of the lungs and cause or worsen chronic obstructive pulmonary disease (COPD), respiratory disease, emphysema, bronchitis and increased causes admission in hospital. Objective The purpose of this study is the determination of COPD attributed to NO2 in people's life o...

Introduction Anesthetic gases are very important for health among health care worker (HCWs) and patients in medical centers. Operating rooms (ORs) is the most important ward that use anesthetic gases. Isoflurane gases is very dangerous for HCWs. Objective In this study, we have associated the concentration of anesthetic toxic isoflurane gases (ppm...

We study the problem of fair division of a heterogeneous resource among strategic players. Given a divisible heterogeneous cake, we wish to divide the cake among n players to meet these conditions: (I) every player (weakly) prefers his allocated cake to any other player’s share (such notion is known as envy-freeness), (II) the allocation is dominan...

Dust storm in Khuzestan region is strongly influenced by transportation and influx of large amount of particulate matter from internal sources (Hawizeh Marshes and East Ahwaz) and external sources (the Arabian Desert in Saudi Arabia, Jordan, Syria and the Sahara Desert). Particulate matter is one of the main components of indoor and outdoor air qua...

Over the last decades, air pollution has been regarded as one of the major environmental problems. Cardiovascular and respiratory diseases are among the most common illnesses arising from air pollution and dust storm. Nowadays, non-communicable diseases resulting from air pollution have affected many people around the world. In recent years, the ci...

Heavy metals (HM) are one of the main components of urban air pollution. Today, megacities and industrial regions in southwest of Iran are frequently suffering from severe haze episodes, which essentially caused by PM10-bound heavy metals. The purpose of this study was to evaluate the health risk assessment on human exposed to heavy metals (Cr, Ni,...

One of the important wards in educational hospital due to special conditions of patients is operating rooms (ORs). Anesthetic gases sevoflurane among air anesthetic pollutant is very dangerous for health care worker (HCW) and patients. The aim of this study was to associate the concentration of anesthetic toxic sevoflurane gases (ppm) indoor air in...

The aim of this study was to assess nitrogen oxides (NOx) dispersion from the main stacks of a cement factory in Doroud, Iran. The SCREEN3 software and Gaussian plume model were applied to predict and to compare the on-site NOx concen-trations to provide relevant information on its emis-sions and dispersion. The results showed that within a radius...

This study examined the health impacts of O3 in Ahvaz (Iran). Ozone data were obtained from the Iranian Environmental Protection Agency and the time series were analyzed while the health endpoints from O3 exposure were calculated using the Air Q model. The time series analysis showed that air pollutants levels were associated with five steps de...

Antibiotics are very effective in the treatment of bacterial infections that can be very dangerous for environment, human beings and animals. The purpose of this study was to evaluate and analyze the efficiency of the extended aeration activated sludge (EAAS) system in the removal of tetracycline (TC) from hospital wastewater. This study employed a...

In this work, we present the result of an electric coagulation process with iron and aluminum electrodes for removal of formaldehyde (CH2O) from grey water in different car washes of Ahvaz, Iran. Reactive with a strong smell at room temperature and Colorless is the most important characteristics of this gas [1]. Formaldehyde is manually produced fr...

Car wash effluent is one of the important threats that can contaminate water resources for drinking, agriculture and industrial uses in Iran. The purpose of this study was assessment and analysis of the efficiency of the electrocoagulation process in the removal of turbidity and organic matter from car wash effluent. Data were taken through laborat...

We study the problem of fair division of a heterogeneous resource among strategic players. Given a divisible heterogeneous cake, we wish to divide the cake among n players in a way that meets the following criteria: (I) every player(weakly) prefers his allocated cake to any other player’s share (such notion is known as envy-freeness), (II) the mech...

Air pollutants produced in environments have many detrimental impacts on human health. Chronic obstructive pulmonary disease (COPD) is a common worldwide respiratory disease. The aim of this study was to estimate the association between the load of particulate matters and the prevalence of COPD in Ahvaz, southwest of Iran, during 2009–2013. This ep...

Heart Rate (HR) is a fundamental vital sign, monitoring which provides essential information for automated healthcare systems. The emerging technology of Photoplethysmograph (PPG) is shown as a feasible candidate for such applications; however, Motion Artifacts (MA) hinder efficient HR estimation using PPG, especially in situations involving physic...

ORIGINAL ARTICLE Introduction: Colloidal materials and suspended solids cause turbidity in water. To remove turbidity, clarification method is used that includes processes of coagulation, flocculation, and sedimentation. Due to the long duration of coagulation process, coagulant aids are applied. Despite the favorable efficiency of synthetic polyel...

Introduction: Colloidal materials and suspended solids cause turbidity in water. To remove turbidity, clarification method is used that includes processes of coagulation, flocculation, and sedimentation. Due to the long duration of coagulation process, coagulant aids are applied. Despite the favorable efficiency of synthetic polyelectrolytes as a c...

ORIGINAL ARTICLE Introduction: Colloidal materials and suspended solids cause turbidity in water. To remove turbidity, clarification method is used that includes processes of coagulation, flocculation, and sedimentation. Due to the long duration of coagulation process, coagulant aids are applied. Despite the favorable efficiency of synthetic polyel...

The Shush variety with CBRD-3/STORK × DICOCCOIDES pedigree has come out from AREO-ICARDA Irrigated Spring Bread Wheat Improvement Project (AIISWIP) for low latitude of west and center of Asia and north of Africa. The cultivar was selected from adaptability tests in hot and dry climates in the south of the countries during two consecutive years (200...