161 research outputs found
Erratum: Immunogenicity, antigenicity and epitope mapping of Salmonella InvH protein: An in silico study
No full textThere was an error in the author list of the published article.
Two authors (T Hashempour, Z Hasanshahi) requested to remove from the authors lists. After obtaining the agreement of the authors and the corresponding author, Editor-in-Chief accept the corrections as listed below.
The correct author list is:
Behzad Dehghani, Iraj Rasooli
We apologize for any inconvenience this may have caused.
Erratum for:
Immunogenicity, antigenicity and epitope mapping of Salmonella InvH protein: An in silico study
B Dehghani, T Hashempour, Z Hasanshahi, I Rasooli
J Curr Biomed Rep. 2020; 1(1): 9-16
Robust Observer Design for LPV Systems Using Kronecker Sum and Direct Searching
No full textThese files are related to the following paper:
Abbasi, N., Dehghani, M., Asemani, M.H. and Abolpour, R., 2022. Robust observer design for LPV systems using Kronecker sum and direct searching. ISA Transactions.
These files compare the feasibility performance of the proposed approach to some existing methods based on LMIs. Based on the chosen number of system order and uncertain parameters, fifty LPV models are randomly generated. In each case, the number of system order and uncertain parameters and the generated random systems and the results of employing our proposed approach and 3 other approaches are shown. The direct search approach shows promising results.
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Identifying the Research Extent of Medical Tourism in the World and the Components of Attracting Medical Tourists in Iran
No full textIdentifying the Research Extent of Medical Tourism in the World and the Components of Attracting Medical Tourists in Iran
Mohammad Dehghani Mahmoudabadi1, Iravan Masoudi Asl*2,
Soad Mahfoozpour3, Somayeh Hessam4
1Department of Health Services Management, Science & Research Branch, Islamic Azad University, Tehran, Iran.
Corresponding author: Tel: 09209901218, email: [email protected]
Corrigendum notice: In the above article, which was published in the Volume 31, Issue of 8,Year 2023, the correspounding author has been changed
The complexities associated with the detection of new psychoactive substances in wastewater
No full textThe monitoring and surveillance of new psychoactive substances (NPS) is a complex international challenge. NPS mimic the effects of illicit (e.g., cannabis, methamphetamine, MDMA, and LSD) and licit (e.g., ketamine, fentanyl, benzodiazepines) drugs, and due to limited information regarding dose sizes and effects, their consumption and use has become of international public health concern. More than 1100 NPS have been identified across all continents, and more are emerging yearly. Current means for monitoring NPS use include self-reporting survey data, pill testing, drug seizure data and forensic toxicology data, while wastewater analysis is utilized as a complementary tool.
Wastewater analysis involves the analysis of markers of NPS use (generally the parent compound or a metabolite) in wastewater as an indicator of consumption. With the variety of classes of NPS (e.g., synthetic cathinones, synthetic cannabinoid receptor agonists, opioids, benzodiazepines and phenethylamines) and their associated physicochemical properties, it is difficult to have a single method for the analysis of all NPS. In this chapter, we will discuss the difficulties associated with analyzing these compounds in wastewater, describe the current methods that have been developed and outline the optimal strategy for their identification in wastewater
Investigation of carbonyl compounds (Acetaldehyde and Formaldehyde) in bottled waters in Iranian markets
No full textThe contamination of water bottles has become a very serious problem attracting more and more concerns due to the possibility of acetaldehyde and formaldehyde migration from PET bottles. Therefore, the study aims to assess the extent of acetaldehyde and formaldehyde migration from polyethylene terephthalate bottles of different manufacturers into bottle contents in relation to the storage time and at room temperature sold in Iranian markets. Twenty typical brands of PET-bottled water samples were purchased from supermarkets and shops in Iran between April and May 2015. In this study, the levels of formaldehyde and acetaldehyde were determined using a high performance liquid chromatograph (HPLC). All bottled water samples in Iranian supermarkets and shops had detectable levels of formaldehyde and acetaldehyde. Minimum and maximum levels of formaldehyde and acetaldehyde in this study varied between 12-45 ?g/l and 25-120 ?g/l, respectively. The average levels of formaldehyde and acetaldehyde in Iranian bottled waters were 28.6 ?g/l and 61.3 ?g/l, respectively. Overall, it could be stated that the bottled waters, available in Iran, are safe for the human consumption, as regards the levels of formaldehyde and acetaldehyde
Ocular refractive and biometric characteristics in patients with tilted disc syndrome
No full textPurpose: To evaluate the ocular refractive and biometric\ud
characteristics in patients with tilted disc syndrome (TDS).\ud
\ud
Methods: This case-control study comprised 41 eyes of 25\ud
patients with established TDS and forty eyes of 20 age- and\ud
sex-matched healthy control subjects. All had a complete\ud
ocular examination including refraction and analysis using\ud
Fourier transformation, slit lamp biomicroscopy, pachymetry keratometry, and ocular biometry. Corneal topography\ud
examinations were performed in the syndrome group only.\ud
\ud
Results: There were no significant differences in spherical\ud
equivalent (p = 0.334) and total astigmatism (p= 0.246)\ud
between groups. However, mean best spectacular corrected\ud
visual acuity was significantly worse in TDS patients (P <\ud
0.001). The lenticular astigmatism was significantly greater\ud
in the syndrome group, while the corneal component was\ud
greater in the controls (p = 0.004 and p = 0.002,\ud
respectively). The measured biometric features were the\ud
same in both groups, except for the lens thickness, relative\ud
lens position, and lens-axial length factor which were greater in the TDS group (p = 0.002, p = 0.015, and p = 0.025, respectively).\ud
\ud
Conclusions: Clinically significant lenticular astigmatism,\ud
more oblique corneal astigmatism, and thicker lens were\ud
characteristic findings in patients with TDS
Marine icing phenomena on vessels and offshore structures: Prediction and analysis
No full textPast progress in prediction and modeling of ice accumulation on marine vessels and structures located in cold seas and ocean regions is reported and examined in this paper. Research studies have developed models for the estimation of sea spray icing, which is the main reason of marine platforms icing. The phenomenon of sea spray icing is one of the major hazards in cold regions. Hence, prediction, assessment and computation of the icing growth rate and the amount of ice accumulation are important but also challenging. The paper briefly reviews sea spray icing models, along with various experimental, theoretical and numerical approaches. An overall survey shows that outstanding past results were based on field observations and followed by empirical tests. Then, theoretical investigations formulated the experimental results. Also, numerical simulations have led to many predictions of icing phenomena as the supplementary research. In this paper, the sea spray icing models are classified based on when the research was conducted. To obtain more accurate and realistic results from marine icing models, evaluations of the various models have been discussed.Statoil ASA (Norway)MITACSResearch and Development Corporation of Newfoundland and Labrador (RDC)Petroleum Research of Newfoundland&Labrador (PRNL)American Bureau of Shipping (ABS
Dataset on the knowledge, attitude, and practices of biomedical waste management among Tehran hospital׳s healthcare personnel
No full textThe data of this research was the investigation of knowledge, attitude and practices of biomedical waste management among healthcare staff and performed in some general hospitals in Tehran, Iran. In this descriptive data, 162 participants were chosen according to stratified sampling method and a self-made questionnaire was used for data collection. Also, Kruskal-wallis test, Mann -Whitney U tests and Spearman correlation coefficient were used to analyze the data in R software, version 3.4.4. The weighted mean of data showed that the knowledge level in staff is �Low� and their activity level is �Moderate�. Also, the data of the statistical analysis revealed that there is no significant difference between male and female health care personnel in knowledge, attitude and practices. However, the results of Kruskal-Wallis test showed that there was no significant difference between the views of hospital staff in occupational and educational groups about knowledge and attitude and their relationship with the history of passing the health course, while the difference in practices level was significant (P < 0.0001). Furthermore, the relation between attitude and practices level of participants with different work experience were not significant. © 2018 The Author
Sea spray icing phenomena on marine vessels and offshore structures: Review and formulation
No full textCold ocean regions have many environmental challenges that pose risks to the stability of both marine vessels and structures and to human safety. One major hazard is the marine or sea spray icing phenomenon. Wave-impact sea spray and wind spray are the main sources of incoming water onto marine vessels and offshore structures that can cause hazardous ice accumulation on those structures. Prediction, assessment, and computation of the icing growth rate and the amount of ice accumulation are important but complex. This paper reviews the history and development of predictive models of sea spray icing on marine vessels and offshore structures. Several topics are reviewed in this paper, such as droplet trajectories, flux of seawater spray, liquid water content (LWC), heat balance at the phase interface, and icing models.Statoil ASA (Norway)MITACSResearch and Development Corporation of Newfoundland and Labrador (RDC)Petroleum Research of Newfoundland & Labrador (PRNL)American Bureau of Shipping (ABS) Grou
Experimental investigation of vertical marine surface icing in periodic spray and cold conditions
No full textIn this paper, the ice load accumulated on a vertical plate of marine platforms during periodic spray icing in a cold room was investigated experimentally. The mass and thickness of ice formation on the plate along with several parameters such as relative humidity, the front and back surface temperatures of the vertical plate, initial temperature of water, and the spray mass flux impinging on the plate were measured and discussed. Analysis of variance (ANOVA), which is a statistical data analysis method, was utilized to interpret the contribution of the investigated parameters during the icing experiments, comparing the effect of each parameter and their interactions on the quantity of ice accumulated on the vertical plate. The primary analysis of the empirical results illustrates that the ambient temperature, airflow velocity, the distance between the fan and the plate, salinity and the timing of spray events have influences in the icing intensity and the amount of ice formation on the vertical plate. The errors between the average ice thicknesses obtained from two different experimental approaches were from 5 to 20%. For the saline ice formation, the temperature difference between the front and back of the vertical plate was greater than that of the pure ice formed during the spray icing event. The primary experimental results alongside the ANOVA analysis verified that airflow velocity is the most effective parameter, with a high level of interaction for time and temperature
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