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Chinese Chemical Letters 2013年第3期24卷 208-210页

作者： Jalal Albadi Azam Mansournezhad mohammad darvishi-paduk College of Science Behbahan Khatam Alanbia University of Technology Department of Chemistry Gachsaran BranchIslamic Azad University

Poly（4-vinylpyridine） is reported as a green, commercial available and efficient basic recyclable catalyst for the synthesis of chromene derivatives. This catalyst can be easily recovered by simple filtration and re... 详细信息

关键词： Poly(4-vinylpyridine)ChromeneBasic catalyst-NaphtholMalononitrile

A Modification of Extended Homoclinic Test Approach to Solve the(3+1)-Dimensional Potential-YTSF Equation

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Chinese Physics Letters 2011年第4期28卷 4-7页

作者： M.T.darvishi mohammad Najafi Department of Mathematics Razi UniversityKermanshah 67149Iran

By means of the extended homoclinic test approach(EHTA)one can solve some nonlinear partial differential equations(NLPDEs)in their bilinear *** an NLPDE has no bilinear closed form we can not use this *** modify the idea of EHTA to obtain some analytic solutions for the(3+1)-dimensional potential-Yu-Toda-Sasa-Fukuyama(YTSF)equation by obtaining a bilinear closed form for *** comparison of this method and other analytic methods,like HAM,HTA and three-wave methods,we can see that the new idea is very easy and straightforward.

关键词： method bilinear analytic

A sensitivity analysis and multi-objective optimization to enhance ethylene production by oxidative dehydrogenation of ethane in a membrane-assisted reactor

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Chinese Journal of Chemical Engineering 2018年第9期26卷 1879-1895页

作者： Ali darvishi Ali Bakhtyari mohammad Reza Rahimpour Department of Chemical Engineering Shiraz University

Owing to the importance of process intensification in the natural gas associated processes, the present contribution aims to investigate the production of an important natural gas downstream product in an improved ***, a membrane-assisted reactor for the oxidative dehydrogenation of ethane is presented. The presented system includes a membrane for axial oxygen dosing into the reaction side. Such a strategy would lead to optimum oxygen distribution along the reactor length and prevention of hot spot formation as well. A feasibility study is conducted by developing a validated mathematical model composed of mass and energy balance equations. The effects of various operating variables are investigated by a rigorous sensitivity ***, by applying the genetic algorithm, a multi-objective optimization procedure is implemented to obtain the optimum operating condition. Considerable increase in the ethane conversion and ethylene yield are the advancements of membrane-assisted oxidative dehydrogenation reactor working under the optimum *** than 30% increase in the ethane conversion is obtained. Furthermore, the ethylene yield is enhanced up to 0.45.

关键词： Olefin ODH process Genetic algorithm Fixed-bed Mathematical modeling Chemical reactors

New Exact Solutions to the (2+1)-Dimensional Ablowitz-Kaup-Newell-Segur Equation: Modification of the Extended Homoclinic Test Approach

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Chinese Physics Letters 2012年第4期29卷 3-6页

作者： mohammad Najafi Maliheh Najafi M.T.darvishi Department of Physiology Faculty of MedicineKermanshah University of Medical SciencesKermanshahIran Department of Mathematics Razi UniversityKermanshah 67149Iran

By means of modification of the extended homoclinic test approach (mEHTA),we obtain some new exact soliton solutions for the (2+1)-dimensional Ablowitz-Kaup-Newell-Segur (AKNS) equation by obtaining a bilinear closed ... 详细信息

关键词： soliton bilinear exact

Herpes zoster in breast cancer：a case report

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The Journal of Biomedical Research 2017年第4期31卷 370-372页

作者： mohammad darvishi Narges Vasei Infectious Diseases and Tropical Medicine Research Center (IDTMRC) AJA University of Medical Sciences TehranIran Department of Surgery AJA University of Medical Sciences Tehran Iran

There is little information on herpes zoster infection in breast cancer patients as a complication during adjuvant *** report a case of herpes zoster in a 65-year-old woman presented with low grade fever and vital signs together with skin symptoms such as severe edema,irritation and itching in the left breast where there was wound *** test revealed varicella zoster *** the best of our knowledge,the histologic features coupled with PCR led to a diagnosis of herpes zoster.

关键词： herpes zoster breast diagnosis PCR treatment

Investigating the structural effect of electrospun nano-fibrous polymeric films on water vapor transmission

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Chinese Journal of Chemical Engineering 2019年第1期27卷 100-109页

作者： Seyed Jalil Poormohammadian Parviz darvishi Abdol mohammad Ghalambor Dezfuli Chemical Engineering Department School of EngineeringYasouj University Physics Department Shahid Chamran University of Ahvaz

Electrospun polymers have many applications in the ***, the structure of these polymers has been less widely considered by *** this work, the structural effect of electrospun and casted films of polyacrylonitrile(PAN) and polyvinylidene fluoride(PVDF) polymers on water vapor transmission were *** of water vapor was measured at 35, 60 and 80 ℃ and different relative *** diffusion coefficients were calculated based on mass changes of the polymer *** water vapor transmission rate(WVTR) was also measured at 35 ℃ and 90% relative *** results indicated that electrospun nano-fibrous polymers(ESNPs) absorb much higher water vapor compared to non-porous casted *** interaction of water molecules with mentioned polymers was investigated based on Flory-Huggins *** Flory-Huggins interaction parameter of electrospun films was less than casted films, suggesting much better interaction of water molecules with electrospun *** was also found that electrospun films have anomalous kinetic behavior and do not obey the Fickian diffusion ***, it was revealed that ESNPs show less resistance to water vapor transmission and they are good candidates for the applications of water vapor separation using membranes.

关键词： Water vapor transmission Polymer structure Nanofiber Electrospinning Porous layer

Risk factors for congenital nasolacrimal duct obstruction in children under two years of age

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国际眼科杂志 2025年第1期25卷 17-23页

作者： Rozhin Kasiri Gholamreza Khataminia Ali Kasiri mohammad Sadegh Mirdehghan mohammad Armin Kasiri Infectious Ophthalmologic Research Center Ahvaz Jundishapur University of Medical SciencesAhvaz ***Iran Islamic Azad University Tehran Medical Sciences Tehran ***Iran

·AIM:To identify various risk factors that may play a significant role in the development of congenital nasolacrimal duct obstruction(CNLDO).·METHODS:This observational case-control study included a case group of 122 children less than two years of age with CNLDO who underwent probing and irrigation treatment at the ophthalmology department of Imam Khomeini Hospital in Ahvaz,Iran,from June 2022 to June2024.A control group of 122 age-matched children without CNLDO was also included for *** was collected from the children's medical records.·RESULTS:The study found a significant correlation between the occurrence of CNLDO and several maternal factors,such as preeclampsia,the use of levothyroxine,hypothyroidism,having more than three pregnancies(gravidity>3),natural pregnancy,and gestational diabetes ***,in children,factors,such as oxygen therapy,anemia,reflux,jaundice,and a family history of CNLDO in first-degree relatives were associated with CNLDO,and maternal preeclampsia and hypothyroidism were found to significantly increase the risk of developing CNLDO in children.·CONCLUSION:Given that CNLDO affects both premature and full-term children,the present findings may potentially facilitate the early identification of children and infants at risk of nasolacrimal duct obstruction,thereby preventing the onset of chronic dacryocystitis.

关键词： risk factors congenital nasolacrimal duct obstruction children

Metabolome Comparison of Transgenic and Non-transgenic Rice by Statistical Analysis of FTIR and NMR Spectra

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Rice science 2009年第2期16卷 119-123页

作者： Keykhosrow KEYMANESH mohammad hassan darvishi Soroush SARDARI Biotechnology Department Pasteur Institute of Iran

Modern biotechnology, based on recombinant DNA techniques, has made it possible to introduce new traits with great potential for crop improvement. However, concerns about unintended effects of gene transformation that possibly threaten environment or consumer health have persuaded scientists to set up pre-release tests on genetically modified organisms. Assessment of ＇substantial equivalence＇ concept that established by comparison of genetically modified organism with a comparator with a history of safe use could be the first step of a comprehensive risk assessment. Metabolite level is the dchest in performance of changes which stem from genetic or environmental factors. Since assessment of all metabolites in detail is very costly and practically impossible, statistical evaluation of processed data of grain spectroscopic values could be a time and cost effective substitution for complex chemical analysis. To investigate the ability of multivariate statistical techniques in comparison of metabolomes as well as testing a method for such comparisons with available tools, a transgenic rice in combination with its traditionally bred parent were used as test material, and the discriminant analysis were applied as supervised method and principal component analysis as unsupervised classification method on the processed data which were extracted from Fourier transform infrared spectroscopy and nuclear magnetic resonance spectral data of powdered rice and rice extraction and badey grain samples, of which the latter was considered as control. The results confirmed the capability of statistics, even with initial data processing applications in metabolome studies. Meanwhile, this study confirms that the supervised method results in more distinctive results.

关键词： rice principal component analysis discriminant analysis nuclear magnetic resonance Fourier transform infrared spectroscopy transgene safety assessment metabolome analysis

Hematological and serum biochemical aspects associated with a camel(Camelus dromedarius)naturally infected by Trypanosoma evansi with severe parasitemia in Semnan,Iran

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Asian Pacific Journal of Tropical Biomedicine 2014年第9期4卷 743-745页

作者： Mahmood Ahmadi-hamedani Khosro Ghazvinian mohammad Mehdi darvishi Department of Pathobiology Faculty of Veterinary MedicineSemnan University Department of Animal Sciences and Food Industries Faculty of Veterinary MedicineSemnan University Department of Veterinary Parasitology Faculty of Veterinary MedicineSemnan University

Objective:To determine the presence of Trypanosoma eransi(***) and the effect of trypanosomosis on hemato-biochemical profile of dromedary camels in Semnan,Iran,which has not been reported ***:To perform this project,blood samples were collected by venipuncture into plain and EDTA-K2-containing vacutainer tubes from 21 dromedary camels(12 males and 9 females) aged3—18 years,from 4 different regions of ***:Microscopic examination of stained thin blood smears revealed the presence of *** in one of the ***,it should be noted that this sample showed a very high parasitemia(more than 5 trypomastigote were visible per microscopic field with MGG,1000×.This heavy parasitemia was associated with an 18-year-old female camel that showed symptoms of corneal opacity,intense emaciation and pale mucous *** of hematological and serum biochemical profiles between the camel infected by *** and uninfected camels indicated anemia,leukocytosis,***,hyperglobulinemia,reduction A/G ratio,increased a,,p and globulins and decreased of a,globulins and increased the concentration of gumma-glutamyl transferase ***:Results of the present study revealed that trypanosomosis was present in dromedary camels of Semnan,Iran(infection rate is 4.76%) and hemato-biochemical parameters were markedly affected by camel trypanosomosis.

关键词： Biochemistry Camel Hematology Scmnan Trypanosoma evansi

Survey on cattle ticks in Nur,north of Iran

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Asian Pacific Journal of Tropical Biomedicine 2014年第3期4卷 209-212页

作者： Ashkan Ghasemi Moghaddam Mozafar Razavi Seyed Mehrshad Rasouli Sajad Hosseinzade mohammad Mehdi darvishi Arash Rakhshanpour mohammad Taghi Rahimi Young Researchers Club Islamic Azad UniversityBabot BranchIran Department of Veterinary Parasitology Semnan UniversitySemnanIran Department of Medical Parasitology and Mycology School of Public HealthTehran University of Medical SciencesTehranIran Department of Parasitology and Mycology School of MedicineMazandaran University of Medical ScienceSariIran Young Researchers Club Islamic Azad UniversityBabol BranchIran

Objective:To survey the prevalence of cattle ticks in Nur County and prepare a list of tick fauna in this ***:This investigation was carried out on 150 head of cattle ticks of rural areas of Nur city which is located in Mazandaran province during spring and summer seasons of *** collected ticks were identified using light microscope and available systematic ***:A total number of 1563 ticks were isolated from examined cattle and their genus and numbers including:lxodes ricinus 51%(111 male and 691 female)and Boophilus annulatus 49%(83male and 678 female),***:Results of the current investigation indicate the presence of two species of acarine ectoparasites which have potential health risk lxodes ricinus and Boophilus *** studies are required to increase our data concerning ticks and other ectopreasites of ruminants in other areas of Mazandaran province and should be noted to their ability in transmission of infectious agents.

关键词： Acarine ecotoparasites Tick Livestock Cattle Public health risk Iran