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Insect Science 2020年第1期27卷 86-98页

作者： Aida Ayoubi ali Asghar talebi Yaghoub Fathipour Mohammad Mehrabadi Faculty of Agriculture Department of EntomologyTarbiat Modares UniversityTehranIran

Bacterial endosymbionts play important roles in ecological traits of *** this study,we characterize the bacterial endosymbionts of *** collected in Karaj,Iran and their role in the performance of the *** results indicated that beside Buchnera aphidicola,***,also harbors both Hamiltonella defensa and Arsenophonus *** PCR(qPCR)results revealed that the populations of the endosymbionts increased throughout nymphal development up to adult emergence;thereafter,populations of Buchnera and Arsenophonus were diminished while the density of *** constantly *** reduction caused prolonged development and no progeny ***,secondary symbiont reduction led to reduction of the total life span and intrinsic rate of natural increase as well as appearance of the deformed dead offspring in comparison with the control *** of the secondary symbionts did not affect parasitism rate of the aphid by the parasitic wasp Aphidius *** these findings showed that *** and Arsenophonus contributed to the fitness of *** by enhancing its performance,but not through parasitoid resistance.

关键词： Arsenophonus Buchnera aphidicola cotton aphid Hamiltonella defensa parasitism resistance

Comparative demography of Liriomyza sativae Blanchard （Diptera： Agromyzidae） on cucumber at seven constant temperatures

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Insect Science 2006年第6期13卷 477-483页

作者： MOSTAFA HAGHANI YAGHOUB FATHIPOUR ali ASGHAR talebi ValiOLLAH BANIAMERI Department of Entomology Faculty of Agriculture Tarbiat Modares University Department of Agricultural Entomology Plant Pests and Diseases Research Institute Tehran Iran

Reproduction and population parameters of vegetable leafminer, Liriomyza sativae Blanchard were measured on cucumber （Cucumis sativus L.） at seven constant temperatures （10, 15, 20, 25, 30, 35 and 40℃）. No eggs were found at 10℃ and flies died after exposure to 40℃. The significantly highest intrinsic rate of natural increase （rm）, net reproductive rate （R0） and finite rate of increase （λ） ofL. sativae were obtained at 25℃ as 0.196, 52.452, and 1.216, respectively. The above-mentioned parameters decreased at 15℃ and 135℃ and this reduction at 35℃ was strong. Doubling time （DT） varied significantly with temperature. The shortest doubling time was obtained at 25℃. Mean generation time （T） decreased significantly with increasing temperature between 15℃ and 35℃. Percentage of immature ages in the stable age distribution was more than 95% at all temperatures. Female longevity was greater than male at all temperatures. Liriomyza sativae lived for a long time at 15℃, whereas at 35℃ had lower survival rates. The effect of temperature on reproduction, especially the intrinsic rate of increase of L. sativae would be useful for predicting its longterm population fluctuation over several generations.

关键词： cucumber demography intrinsic rate of increase life table Liriomyza sativae temperature

Quality control of the parasitoid wasp Trichogramma brassicae (Hymenoptera: Trichogrammatidae) over 45 generations of rearing on Sitotroga cerealella

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Insect Science 2021年第1期28卷 180-190页

作者： Ehsan Ghaemmaghami Yaghoub Fathipour Abdoolnabi Bagheri ali Asghar talebi Gadi V.P.Reddy Department of Entomology Faculty of AgricultureTarbiat Modares UniversityTehranIran Plant Protection Research Department Hormozgan Agricultural and Natural Resources Research and Education CenterAgricultural Research Education and Extension Organization(AREEO)Bandar AbbasIran USDA-ARS-Southern Insect Pest Management Research Unit StonevilleMississippiUSA

Trichogramma brassicae(Bezdenko)is an important biological control agent that has been used widely against many lepidopteran ***,colonies of Trichogramma are mass reared on factitious hosts such as Sitotroga cerealella(Olivier)over many *** this study,we evaluated the quality and performance of a colony of *** that had been reared for over 45 generations(G)using two-sex life table parameters and parasitism *** found that female adult longevity was significantly different among sequential generations,ranging from 5.58±2.5 d(at G5)to 3.75±1.42 d(at G45).However,no significant difference was found in male adult longevity among different *** female wasps survived longer until the 15th gener・ation,they allocated more days for egg laying at G5 and *** highest values of gross reproductive rate(GRR),net reproductive rate(7.),intrinsic rate of increase(r),finite rate of increase(λ)and mean generation time(T)were found in G5 and GIO,which also showed significantly higher *** significant difference in the finite parasitism rate(co)was found among generations up to *** results suggest that *** wasps held under continuous laboratory rearing can be used successfully in biological control programs until the 15th generation without any loss of quality or ***,laboratory mass rearing colonies declined in quality after 15 generations and we suggest that they should be rejuvenated regularly by adding field-collected parasitoids periodically.

关键词： biological control generation-dependent demography mass rearing parasitism rate Trichogramma brassicae

Cryopreservation enhances vacuolization in human spermatozoa

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Asian pacific Journal of Reproduction 2017年第6期6卷 247-251页

作者： Nahid Yari Sahabeh Etebary Mohammad ali Khalili ali Reza talebi Research and Clinical Center for Infertility Shahid Sadoughi University of Medical SciencesYazdIran

Objective:To evaluate the impact of freezing–thawing on the human sperm head vacuoles and the potential value of motile sperm organelle morphology examination for selection of frozen-thaw ***: In 30 sperm samples from infertile men, analysis for conventional sperm parameters (motility, vitality, and normal morphology) and a morphological analysis at high magnification for vacuoles examination were done before cooling and after warming. For description of sperm head vacuoles, two hundred spermatozoa were examined and were classified into three groups according to presence and vacuole areas including no vacuole group (free of any vacuole), small vacuole group (occupy not more than 4% of the nuclear area), and large vacuole group (occupy more than 4% of the normal nuclear area).Results:Significant reduction of progressive motility and vitality was observed following cryopreservation (Palities such as vacuoles that are increased post cryopreservation.

关键词： Freezing MSOME Spermatozoa Thawing Vacuoles

Colonization of neonate mouse spermatogonial stem cells co-culture with Sertoli cells in the presence and absence soft agar

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Asian pacific Journal of Reproduction 2020年第6期9卷 298-304页

作者： ali talebi Shadan Navid Maryam Borhani-Haghighi Yumi Hoshino Mehdi Abbasi Zahra Khosravizadeh School of Medicine Shahroud University of Medical SciencesShahroudIran Tissue Engineering and Stem Cells Research Center Shahroud University of Medical SciencesShahroudIran Sexual Health and Fertility Research Center Shahroud University of Medical SciencesShahroudIran Department of Anatomy Gonabad University of Medical SciencesGonabadIran Department of Anatomy School of MedicineTehran University of Medical SciencesTehranIran Laboratory of Reproductive Endocrinology Graduate School of Biosphere ScienceHiroshima UniversityHiroshimaJapan

Objective:To investigate the effects of soft agar on in-vitro proliferation of neonate mouse spermatogonial stem cells co-cultured with Sertoli ***:Tissues of neonate NMRI male mice testes were used for harvesting spermatogonial stem cells and Sertoli *** cell harvest,flow cytometry using promyelocytic leukemia zinc-finger(PLZF)protein antibody was used to assess the purity of the *** isolated testicular cells were cultured in the absence(the control group)or presence of soft agar-coated dishes(the experimental group)supplemented with leukemia inhibitory factor and glia cell line–derived neurotrophic factor for two *** phosphatase activity was assessed in the colonies formed after two weeks of culture by alkaline phosphatase *** day 14 of culture,the expression levels of DNA-binding protein inhibitor(ID-4)and PLZF genes in the undifferentiated cells were evaluated by the detection of PLZF protein antibody using real-time PCR and immunocytochemistry *** number and diameter of the colonies of spermatogonial stem cells were assessed by ImageJ ***:In the experimental group,the number and the diameter of colonies significantly increased as compared with those in the control group(P<0.05,P<0.01,respectively).In addition,the level of expression of ID-4 and PLZF genes in the undifferentiated cells significantly increased in the experimental group as compared with the control group(P<0.01).However,the expression of tyrosine-protein kinase kit(c-kit)gene in differentiated cells decreased in the experimental group as compared with the control group,but there was no significant difference between the two ***:Spermatogonial stem cells can be efficiently proliferated by culturing the stem cells in soft agar-coated *** new protocol used in this study can be a valuable method for future studies.

关键词： Spermatogonial stem cell Soft agar Colonization Proliferation Mouse

Antioxidant effects of quercetin in freeze-thawing process of mouse spermatogonialstem cells

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Asian pacific Journal of Reproduction 2019年第1期8卷 7-12页

作者： Fardin Amidi Zahra Rashidi Zahra Khosravizadeh Kajal Khodamoradi ali talebi Shadan Navid Mehdi Abbasi Department of Anatomy School of MedicineTehran University of Medical SciencesTehranIran

Objective: To evaluate the antioxidant effect of quercetin on cell viability, reactive oxygen species (ROS) contents and apoptosis of cryopreserved mouse spermatogonial stem cells (mSSCs). Methods: mSSCs were isolated from neonate mice and cultivated in culture medium containing 30 μM quercetin for 48 h and then frozen for 2 weeks. After thawing, MTT assay was carried out to analyze the cell viability. Moreover, intracellular ROS levels were measured by flow cytometery and apoptosis was evaluated by detection of phosphatidylserine externalization assay and also real-time polymerase chain reaction. Results: Pre-treatment of mSSCs by 30 μM quercetin significantly decreased intracellular ROS content and apoptotic cell numbers and improved viability of mSSCs. Moreover, the gene expression of Bcl-2 and Bax significantly increased and decreased respectively after the freeze-thawing process. Conclusions: Pre-treatment of mSSCs with quercetin can improve cell viability and reduce apoptosis during freeze-thawing process. It can be a promising way to improve the quality and efficiency of cryopreservation protocols used in fertility preservation strategies.

关键词： Spermatogonial stem cell Cryopreservation Oxidative stress Quercetin

Ethyl Methane Sulphonate (EMS) Induced Mutagenesis in Malaysian Rice (cv. MR219) for Lethal Dose Determination

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American Journal of Plant Sciences 2012年第12期3卷 1661-1665页

作者： ali Benjavad talebi Amin Benjavad talebi Behzad Shahrokhifar 2De- partment of Computer Sciences Faculty of Science and Information Technology National University of Malaysia (UKM) Bangi Malaysia Department of Plant Biotechnology National Institute of Genetic Engineering and Biotechnology (NIGEB) Tehran Iran Department of Weed Science Shoushtar Branch Islamic Azad University Shoushtar Iran

Chemical and physical mutagenesis has been used to increase genetic variability in crop plants. More than 430 new varieties have been derived as mutants of rice (Oryza sativa L.) via the application of different mutagenic agents. Chemical mutagens such as ethyl methane sulphonate (EMS), diepoxybutane-derived (DEB), sodium azide and irradiation (Gamma rays, X-rays and fast neutrons) have been widely used to induce a large number of functional variations in rice and others crops. Among chemical mutagens, the alkylating agent, ethyl methane sulfonate (EMS) is the most commonly used in plants as it causes a high frequency of nucleotide substitutions, as detected in different genomes. In this study, seeds of potential genotype of the popular variety, (Oryza sativa L. spp. Indica cv. MR219) were treated with EMS at concentrations of 0.25%, 0.50%, 0.75%, 1%, 1.25%, 1.5% and 2%. Sensitivity to EMS was determined by various measurements on the M1 generation. As concentration of applied EMS increased, will decrease in germination, seedling height, root length and emergence under field conditions was observed in M1 generation as compared to the non-treatment control. Plant height and root length also decreased with increases in EMS mutagenesis in an approximately linear fashion. The LD25 and LD50 values were observed based on growth reduction of seedlings after EMS treatment with 0.25% and 0.50% on the rice variety (Oryza sativa L. spp. Indica cv. MR219).

关键词： EMS Lethal Dose Chemical Mutagenesis Ethyl-Methane Sulfonate Oryza Sativa Indica cv. MR219

Stability Analysis and Performance Evaluation of Delayed Bilateral Telerobotic Systems over a Lossy Communication Channel

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Journal of Systems Science & Complexity 2021年第1期34卷 157-179页

作者： BAKHSHI ali ALFI alireza talebi Heidar ali SOURATGAR Amir Aboulfazl YOUSEFI Mahdi Faculty of Electrical and Robotic Engineering Shahrood University of TechnologyShahrood 36199-95161Iran Power Plants Control Systems Technology Development Plan Department of monitoring and ControlNiroo Research InstituteTehran 14665-517Iran Real-Time and Robotics system Laboratory Faculty of Electrical EngineeringAmirkabir University of TechnologyHafez AvenueTehran 15914Iran Electrical and Computer Engineering Department The University of British Columbia2385East MallVan couverBC V6T 1Z4Canada

The focus of this paper is to address a novel control technique for stability and transparency analysis of bilateral telerobotic systems in the presence of data loss and time delay in the communication channel. Different control strategies have been reported to compensate the effects of time delay in the communication channel;however, most of them result in poor performance under data loss. First, a model for data loss is proposed using a finite series representation of a set of periodic continuous *** improve the performance and data reconstruction, a holder circuits is also introduced. The passivity of the overall system is provided via the wave variable technique based on the proposed model for the data loss. The stability analysis of the system is then derived using the Lyapunov theorem under the time delay and the data loss. Finally, experimental results are given to illustrate the capability of the proposed control technique.

关键词： Lossy channel passivity stability telerobotic transparency

Natural convection heat transfer enhancement of different nanofluids by adding dimple fins on a vertical channel wall

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Chinese Journal of Chemical Engineering 2020年第3期28卷 643-659页

作者： Milad Gholami Mohammad Reza Nazari Mohammad Hossien talebi Farzad Pourfattah Omid ali Akbari Davood Toghraie Department of Mechanical Engineering Yazd UniversityYazdIran School of Mechanical Engineering Science&Arts UniversityYazdIran Mechanical Engineering Department University of Kashan KashanIran Young Researchers and Elite Club Khomeinishahr BranchIslamic Azad UniversityKhomeinishahrIran Department of Mechanical Engineering Khomeinishahr BranchIslamic Azad UniversityKhomeinishahrIran

In this numerical study,natural flow and heat transfer of nanofluids with Al2O3,TiO2,Cu and CNT nanoparticles in a vertical channel with dimpled fins at Rayleigh number(Ra)of Ra=3.25×107 to Ra=1×108 are investigated by using the finite volume *** obtained results revealed that,using CNT in volume fractions of 2%and 4%leads to significant heat transfer and atφ=6%,using TiO2 nanoparticles has a great effect on Nu number ***,using solid nanoparticles in base fluid causes more uniform heat transfer distribution,especially in areas close to heated surface and by adding more volume fraction in base fluid,temperature level *** general,according to temperature contours,reduction of wall temperature depends on the increase of Ra and volume fraction and the type of solid nanoparticles.

关键词： Natural heat transfer Dimpled fins Rayleigh number Nanofluid

Spreadability of powders for additive manufacturing:A critical review of metrics and characterisation methods

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Particuology 2024年第10期93卷 211-234页

作者： Fatemeh A.talebi Zobaideh Haydari Hamid Salehi Mozhdeh Mehrabi Jabbar Gardy Mike Bradley Andrew E.Bayly ali Hassanpour School of Chemical and Process Engineering University of LeedsLeedsLS29JTUK School of Engineering University of GreenwichGreenwichME44TBUK Cormica Limited Listerhills Science ParkCampus RoadBradfordBD71HRUK

Powder bed fusion methods of additive manufacturing (AM) require consistent, reproducible, and uniform layers of powder for the reliable production of high-quality parts, where properties of powder are central to achieving this. Among these properties, powder flowability and spreadability play critical roles in determining the quality of these powder *** extensive research has been conducted on powder flow and spreading behaviour, and on their characterisation, there is little critical comparison and review of these terms in the context of AM. Such a review is necessary to further develop and enhance our comprehension of spreading dynamics and its relation to powder properties in AM *** review paper aims to build a coherent understanding of the correlation between powder characteristics and spreading in powder based additive manufacturing and its impact on manufactured parts. It highlights the current progress in comprehending spreading dynamics, the influence of powder characteristics, environmental conditions, spreading system, and the development of testing tools to assess powder spreadability. Furthermore, the paper critically discusses the challenge of finding appropriate quantitative metrics and recent advances in the use of standardised methods for evaluating powder spreadability.

关键词： Powder spreading Powder flowability Powder properties Quality of layer and final products