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  1. Article: Compressive Strength of Temporary Crowns Made from Default design in Two Types of Software.

    Ghaffari, Tahereh / Nourizadeh, Amin / Shafiei, Elnaz / Mahboub, Farhang / Kalantari, Amir Reza

    Journal of dentistry (Shiraz, Iran)

    2023  Volume 24, Issue 1, Page(s) 47–52

    Abstract: Statement of the problem: Various default values in each software can eventually lead to different crown thicknesses and affect their compressive strength.: Purpose: This study aimed to compare the compressive strength of temporary crowns made with ... ...

    Abstract Statement of the problem: Various default values in each software can eventually lead to different crown thicknesses and affect their compressive strength.
    Purpose: This study aimed to compare the compressive strength of temporary crowns made with the milling machine, designed in Exocad and 3Shape Dental System software.
    Materials and method: In this
    Results: The first crack and the ultimate strength of crowns designed with the Exocad software was 903.5±96N and 1490±139.3N and for crowns designed with 3Shape Dental System software was 1060.4±160.2N and 1691.1±73.9N, respectively. The amount of compressive strength of temporary crowns made with 3Shape Dental System was significantly higher than those made with Exocad software and this difference was statistically significant(
    Conclusion: The compressive strength of temporary dental crowns made by both softwares is in a clinically acceptable range, but considering that the average compressive strength in the 3Shape Dental System group was slightly higher than of the other group, it is preferable to design and fabricate with 3Shape Dental System software to increase the compressive strength of these crowns.
    Language English
    Publishing date 2023-02-14
    Publishing country Iran
    Document type Journal Article
    ISSN 2345-6485
    ISSN 2345-6485
    DOI 10.30476/DENTJODS.2022.89736.1433
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  2. Article: Myocardial infarction with non-obstructive coronary artery in a middle-aged woman with COVID-19.

    Parsa, Amir Farhang Zand / Pouraliakbar, Hamidreza / Raisi-Estabragh, Zahra / Houshmand, Golnaz

    Oxford medical case reports

    2022  Volume 2022, Issue 2, Page(s) omac001

    Abstract: Cardiovascular involvement is commonly described in coronavirus disease 2019 (COVID-19), where myocardial injury can be caused by exacerbation of the underlying disease and de novo cardiovascular involvement, including myocarditis, stress cardiomyopathy ... ...

    Abstract Cardiovascular involvement is commonly described in coronavirus disease 2019 (COVID-19), where myocardial injury can be caused by exacerbation of the underlying disease and de novo cardiovascular involvement, including myocarditis, stress cardiomyopathy and myocardial infarction. There was a drop in acute coronary syndrome admission rates worldwide as collateral damage of the COVID-19 pandemic as patients were reluctant to seek appropriate care. We presented a 47-year-old woman with acute heart failure and COVID-19 pneumonia. She had a history of typical prolonged chest pain 2 weeks before but no coronary risk factors. The electrocardiogram was consistent with late presentation myocardial infarction. Focused echocardiography showed severe left ventricle systolic dysfunction. She was medically treated for both pneumonia and heart failure. Coronary angiography showed no flow-limiting lesion. Cardiac magnetic resonance in the recovery phase revealed subendocardial late gadolinium enhancement in the left anterior descending territory compatible with myocardial infarction.
    Language English
    Publishing date 2022-02-19
    Publishing country England
    Document type Case Reports
    ZDB-ID 2766251-2
    ISSN 2053-8855
    ISSN 2053-8855
    DOI 10.1093/omcr/omac001
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  3. Article ; Online: Prevalence and Severity of COVID-19 and Missed Job Opportunities among Healthcare Workers in Mazandaran Province, February-June 2020

    Farhang Babamahmoodi / Ahmad Alikhani / Masoud Maboudi / Jamshid Yazdani Charati / Bita Paknezhad / Amir Hossein Gharib / Azadeh Khalatbari

    Journal of Mazandaran University of Medical Sciences, Vol 32, Iss 217, Pp 87-

    2023  Volume 95

    Abstract: Background and purpose: The COVID-19 pandemic resulted in an uncontrolled disease burden on healthcare workers (HCWs) worldwide. We aimed to investigate the prevalence and severity of COVID-19 in HCWs of selected hospitals in Mazandaran province and ... ...

    Abstract Background and purpose: The COVID-19 pandemic resulted in an uncontrolled disease burden on healthcare workers (HCWs) worldwide. We aimed to investigate the prevalence and severity of COVID-19 in HCWs of selected hospitals in Mazandaran province and examine the association between COVID-19 and missed opportunities of HCWs. Materials and methods: In this retrospective descriptive-analytical study, 1105 HCWs in Qaemshahr Razi Hospital and Sari Fatemeh-Zahra Hospital were studied between February 2020 and June 2020. In order to evaluate the frequency and severity of the disease, clinical and paraclinical manifestations were recorded by a trained HCW. Data were analyzed in SPSS V18. Results: The frequency of COVID-19 was 16.19% among HCWs. The patients included 113 (63.13%) nurses, 47(26.26%) service providers and administrative personnel, and 19(10.61%) physicians. Duration of sick leave was found to be significantly associated with severity of COVID-19 (P=0.006). This length was also significantly associated with the job and was longer in nurses (P=0.013). Our findings revealed a significant relationship between the level of adherence to personal protective equipment (PPE) and the severity of COVID-19 (P=0.001). Conclusion: COVID-19 could exert remarkable impact on the quality of work in HCWs, especially among nurses. Effective training of HCWs regarding PPE instructions results in suitable protection against severe forms of the disease.
    Keywords covid-19 ; healthcare worker ; personal protective equipment ; Medicine ; R ; Medicine (General) ; R5-920
    Subject code 360
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher Mazandaran University of Medical Sciences
    Document type Article ; Online
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  4. Article: A new combined heating and power system driven by biomass for total-site utility applications

    Amiri, Hamed / Sotoodeh, Amir Farhang / Amidpour, Majid

    Renewable energy. 2021 Jan., v. 163

    2021  

    Abstract: Steam generation of the industrial steam networks through an internal process driven by a renewable energy can be extremely demanding. Conventionally, fossil fuels are used for this aim since a high-temperature heat source is needed to reliability drive ... ...

    Abstract Steam generation of the industrial steam networks through an internal process driven by a renewable energy can be extremely demanding. Conventionally, fossil fuels are used for this aim since a high-temperature heat source is needed to reliability drive a steam network. To address this demand and decrease environmental penalty associate with the conventional methods, an innovative and high-efficient biomass-driven cogeneration system is proposed for the real need of the utility systems by considering a suitable total-site heat recovery and distribution mechanism. The proposed cogeneration system consists of a biomass gasifier, a gas turbine cycle, a solid oxide fuel cell, and a steam network unit. In comparison with the previous cogeneration systems, the steam required for the gasification process in the gasifier is supplied by some portion of the steam generated at the last stage of the steam network unit. Also, natural gas is used as an auxiliary fuel to satisfy the surplus fuel required for the steam generation. A new methodology is introduced to use a biomass-driven cogeneration system as a primary steam generator of the steam network unit instead of using a conventional boiler or gas turbine with heat recovery steam generator. The proposed system produces additional heating load of 235.26 MW in comparison with the topping system (i.e., combined solid oxide fuel cell/gas turbine system). Integrating the steam network unit also increased the energy efficiency of the basic system from 20.05% to 54.35% and the net power from 47.55 MW to 72.3 MW. The proposed integrated system can be regarded as a promising futuristic layout for simultaneous steam and power generation of the petrochemical industries.
    Keywords biomass ; energy efficiency ; fuel cells ; gasification ; generators (equipment) ; heat recovery ; methodology ; natural gas ; steam
    Language English
    Dates of publication 2021-01
    Size p. 1138-1152.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2001449-1
    ISSN 1879-0682 ; 0960-1481
    ISSN (online) 1879-0682
    ISSN 0960-1481
    DOI 10.1016/j.renene.2020.09.039
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  5. Article: The Protective Effect of

    Shahbazi, Parisa / Nematollahi, Ahmad / Arshadi, Sanaz / Farhang, Hosein Hashemzadeh / Shahbazfar, Amir Ali

    Iranian journal of parasitology

    2021  Volume 16, Issue 2, Page(s) 279–288

    Abstract: Background: A specific treatment has not yet developed for cryptosporidiosis, and some of the used drugs had side effects in immunodeficient patients. The goal of an appropriate remedy is to remove symptoms and improve immune responses in hosts. The ... ...

    Abstract Background: A specific treatment has not yet developed for cryptosporidiosis, and some of the used drugs had side effects in immunodeficient patients. The goal of an appropriate remedy is to remove symptoms and improve immune responses in hosts. The current study was designed to evaluate the therapeutic efficacy of
    Methods: Thirty six NMRI mice, 4-6 wk old, were randomly divided into six equal groups. C1: uninfected, treated control; C2: infected, untreated control; T1, T2, T3, and P: infected, treated with 0.2, 2, and 20 mg/ml extract, and 5mg/ml paromomycin, respectively. Mice were experimentally infected by oral administration of 10
    Results: Results revealed that oocyst shedding was significantly (
    Conclusion: Artemisia spicigera
    Language English
    Publishing date 2021-09-13
    Publishing country Iran
    Document type Journal Article
    ZDB-ID 2388453-8
    ISSN 2008-238X ; 1735-7020
    ISSN (online) 2008-238X
    ISSN 1735-7020
    DOI 10.18502/ijpa.v16i2.6318
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  6. Article ; Online: Empirically derived dietary pattern and odds of non-alcoholic fatty liver diseases in overweight and obese adults: a case-control study.

    Talenezhad, Nasir / Mirzavandi, Farhang / Rahimpour, Shahab / Amel Shahbaz, Amir Pasha / Mohammadi, Mohammad / Hosseinzadeh, Mahdieh

    BMC gastroenterology

    2022  Volume 22, Issue 1, Page(s) 158

    Abstract: Background: The prevalence of non-alcoholic fatty liver disease (NAFLD) is rising at an exponential rate throughout the world. Given the confirmed association between nutritional status and NAFLD, this study aimed to investigate the relationship of ... ...

    Abstract Background: The prevalence of non-alcoholic fatty liver disease (NAFLD) is rising at an exponential rate throughout the world. Given the confirmed association between nutritional status and NAFLD, this study aimed to investigate the relationship of dietary patterns with NAFLD in overweight and obese adults.
    Methods: In this age- and gender-matched case-control study, 115 newly diagnosed cases and 102 control individuals participated. A validated 178-item semi-quantitative food frequency questionnaire was administered to assess the participants' dietary data. Dietary patterns were extracted from 24 predefined food groups by factor analysis. Multivariate logistic regression was run to evaluate the relationship between dietary patterns and NAFLD.
    Results: Factor analysis resulted in: "western", "traditional", and "snack and sweets" dietary patterns. The NAFLD odds were greater in participants at the highest quintile of the "western" dietary pattern than the lowest quintile (OR: 3.52; 95% CI: 1.64, 8.61). A significant increasing trend was observed in NAFLD odds across increasing quintiles of the "western" dietary pattern (P-trend = 0.01). After adjusting for the potential confounders, this relationship remained significant (OR: 3.30; 95% CI: 1.06-10.27). After full adjustments, NAFLD had no association with "traditional" or "snack and sweets" dietary patterns.
    Conclusion: The "western" dietary pattern containing fast food, refined grains, liquid oil, pickles, high-fat dairy, sweet desserts, red meat, tea, and coffee was associated with increased odds of NAFLD. However, further prospective studies are required to establish these results.
    MeSH term(s) Adult ; Case-Control Studies ; Diet, Western ; Humans ; Non-alcoholic Fatty Liver Disease/epidemiology ; Obesity/epidemiology ; Overweight/epidemiology
    Language English
    Publishing date 2022-03-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041351-8
    ISSN 1471-230X ; 1471-230X
    ISSN (online) 1471-230X
    ISSN 1471-230X
    DOI 10.1186/s12876-022-02222-z
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  7. Article: Clinical report of a Holstein's calf with ichthyosis.

    Moghaddam, Sina / Houshangi, Amir Farhang / Eshratkhah, Behrad / Allahvirdizadeh, Rahman

    Veterinary research forum : an international quarterly journal

    2021  Volume 12, Issue 1, Page(s) 133–135

    Abstract: Congenital ichthyosis is a disease associated with hair loss and the presence of horny plates in the epidermis, covering the whole skin. The leading cause of the disease in humans and animals is genetic disorders, and they can be found in mild and severe ...

    Abstract Congenital ichthyosis is a disease associated with hair loss and the presence of horny plates in the epidermis, covering the whole skin. The leading cause of the disease in humans and animals is genetic disorders, and they can be found in mild and severe forms. In June 2015, a newly born calf of the Holstein breed was referred to the Livestock Veterinary Hospital internal ward, Shabestar, Iran. The calf's clinical symptoms included maternal alopecia, thickening, and fissure over large areas of the body, tough skin with thick horny scales and deep crack, lack of flexibility in the body parts (gluteal, knee, and shoulder areas), ectropion, eclabium, and microtia. The blood samples were taken from the calf's jugular vein to measure the hematological and biochemical parameters. After euthanizing the calf, the skin of different body regions was sampled for histopathological examination of skin lesions. Based on the results, the amounts of plasma parameters such as urea, triglyceride, glucose, alanine transaminase, lactate dehydrogenase, phosphorus, and uric acid were increased. The leukocytosis and polycythemia were found in the hematology results, and histopathological analysis exhibited hypergranulosis and hyperkeratosis in the skin of affected areas. Ichthyosis is caused by the defect in the autosomal recessive gene and as an incurable disease; there is currently no cure for this deadly disease, and the livestock will be eliminated from the herd.
    Language English
    Publishing date 2021-03-15
    Publishing country Iran
    Document type Case Reports
    ISSN 2008-8140
    ISSN 2008-8140
    DOI 10.30466/vrf.2020.117113.2783
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  8. Article ; Online: Environmental spatial and temporal variability and its role in non-favoured mutant dynamics.

    Farhang-Sardroodi, Suzan / Darooneh, Amir H / Kohandel, Mohammad / Komarova, Natalia L

    Journal of the Royal Society, Interface

    2019  Volume 16, Issue 157, Page(s) 20180781

    Abstract: Understanding how environmental variability (or randomness) affects evolution is of fundamental importance for biology. The presence of temporal or spatial variability significantly affects the competition dynamics in populations, and gives rise to some ... ...

    Abstract Understanding how environmental variability (or randomness) affects evolution is of fundamental importance for biology. The presence of temporal or spatial variability significantly affects the competition dynamics in populations, and gives rise to some counterintuitive observations. In this paper, we consider both birth-death (BD) or death-birth (DB) Moran processes, which are set up on a circular or a complete graph. We investigate spatial and temporal variability affecting division and/or death parameters. Assuming that mutant and wild-type fitness parameters are drawn from an identical distribution, we study mutant fixation probability and timing. We demonstrate that temporal and spatial types of variability possess fundamentally different properties. Under temporal randomness, in a completely mixed system, minority mutants experience (i) higher than neutral fixation probability and a higher mean conditional fixation time, if the division rates are affected by randomness and (ii) lower fixation probability and lower mean conditional fixation time if the death rates are affected. Once spatial restrictions are imposed, however, these effects completely disappear, and mutants in a circular graph experience neutral dynamics, but only for the DB update rule in case (i) and for the BD rule in case (ii) above. In contrast to this, in the case of spatially variable environment, both for BD/DB processes, both for complete/circular graph and both for division/death rates affected, minority mutants experience a higher than neutral probability of fixation. Fixation time, however, is increased by randomness on a circle, while it decreases for complete graphs under random division rates. A basic difference between temporal and spatial kinds of variability is the types of correlations that occur in the system. Under temporal randomness, mutants are spatially correlated with each other (they simply have equal fitness values at a given moment of time; the same holds for wild-types). Under spatial randomness, there are subtler, temporal correlations among mutant and wild-type cells, which manifest themselves by cells of each type 'claiming' better spots for themselves. Applications of this theory include cancer generation and biofilm dynamics.
    MeSH term(s) Animals ; Biological Evolution ; Ecosystem ; Models, Biological ; Mutation ; Population Dynamics ; Time Factors
    Language English
    Publishing date 2019-08-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2156283-0
    ISSN 1742-5662 ; 1742-5689
    ISSN (online) 1742-5662
    ISSN 1742-5689
    DOI 10.1098/rsif.2018.0781
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  9. Article ; Online: Eyelid Discoid Lupus Erythematosus Misdiagnosed as Leishmaniasis

    Amir Feily / Farhang Houshmand / Marigdalia k Ramirez-fort

    Journal of Clinical and Diagnostic Research, Vol 12, Iss 7, Pp WH01-WH

    2018  Volume 02

    Keywords Medicine ; R
    Language English
    Publishing date 2018-07-01T00:00:00Z
    Publisher JCDR Research and Publications Private Limited
    Document type Article ; Online
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  10. Article ; Online: Occurrence of microsporidia spp. infection in children with diarrhea in southern Iran

    Shabani, Manoochehr / Solhjoo, Kavous / Taghipour, Ali / Davami, Mohammad Hasan / Rahmanian, Ehsan / Karami, Saina / Nikkhoo, Amir Mohammad / Hooshmand, Farhang

    J Parasit Dis. 2022 Dec., v. 46, no. 4 p.1127-1132

    2022  

    Abstract: Microsporidia spp. are recognized emerging zoonotic microorganisms in immunocompromised and immunocompetent populations. Therefore, we conducted a study to investigate the occurrence, sociodemographic and risk factors of microsporidia spp. infection ... ...

    Abstract Microsporidia spp. are recognized emerging zoonotic microorganisms in immunocompromised and immunocompetent populations. Therefore, we conducted a study to investigate the occurrence, sociodemographic and risk factors of microsporidia spp. infection using microscopic and molecular techniques in children with diarrhea in Jahrom city (Fars province, southern Iran). Stool samples were gathered from 395 children aged ≤ 14 years between January 2017 and January 2018. Next, a questionnaire includes the age, sex, living area, immune system status, breast milk consumption, contact with animals, and type of water source was completed for all children. For microscopic assessment, modified acid-fast trichrome staining was applied for detection of microsporidia spores. Furthermore, DNA extraction and PCR were accomplished for all samples. A total of 15 (3.79%; 95% confidence interval [CI] 2.14–6.19) and 8 (2.02%; 95% CI 0.88–3.95) samples were positive for microsporidia infection by microscopic and molecular techniques, respectively. Although none of the sociodemographic and risk factors were significant (p value > 0.05), the prevalence of this infection was higher in some variables (e.g., rurality, contact with animals and well water consumption). Three random samples were sequenced that all isolates belonged to Enterocytozoon bieneusi. Cognizance of microsporidia occurrence, risk factors, and disease disorders for the health specialists, physicians, children’s families are important for appropriately control the infection.
    Keywords DNA ; Enterocytozoon bieneusi ; breast milk ; confidence interval ; diarrhea ; immune system ; milk consumption ; questionnaires ; risk ; well water ; Iran
    Language English
    Dates of publication 2022-12
    Size p. 1127-1132.
    Publishing place Springer India
    Document type Article ; Online
    ZDB-ID 2548456-4
    ISSN 0975-0703 ; 0971-7196
    ISSN (online) 0975-0703
    ISSN 0971-7196
    DOI 10.1007/s12639-022-01535-w
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