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338 results on '"Ziaee A"'

15. Role of host immunity and HBx among inactive chronic hepatitis B patients in a highly endemic region

Author

Yousefpoor, Nafise, primary, Mahdavian, Malihe, additional, Pourbagher, Zohre, additional, Ahmadi Ghezeldasht, Sanaz, additional, Mosavat, Arman, additional, Ziaee, Masood, additional, Bahreini, Masoumeh, additional, Soleimanpour, Saman, additional, Sharifmoghadam, Mohammad Reza, additional, Valizadeh, Narges, additional, Asghari, Arghvan, additional, Tabarraie, Alijan, additional, and Rezaee, Seyed Abdolrahim, additional

Published
2023
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28. Iranian diatomaceous earth as a control agent for protection of paddy rice against Sitotroga cerealella (Oliv.) (Lepidoptera, Gelechiidae) and its delayed effects on physicochemical properties of paddy rice

Author

Ziaee, Masumeh, primary, Jalaeian, Mahdi, additional, Danaeifar, Abbas, additional, Takabi, Asiyeh Sheikhzadeh, additional, Bakali, Arezoo Janaki, additional, Saki, Mahsa, additional, Veysi, Fatemeh, additional, Aghaei, Nasim, additional, and Francikowski, Jacek, additional

Published
2022
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37. A socio-technical view of platform ecosystems: Systematic review and research agenda

Author

Yogesh K. Dwivedi, Andreas Schroeder, Ahmad Beltagui, Tim Baines, Kawaljeet Kaur Kapoor, and Ali Ziaee Bigdeli

Subjects
Marketing, Knowledge management, Sociotechnical system, business.industry, media_common.quotation_subject, 05 social sciences, Business model, Modularity, Interdependence, 0502 economics and business, 050211 marketing, Business, Function (engineering), Inclusion (education), 050203 business & management, media_common
Abstract

Business models are becoming more inclined towards platforms, which allow inclusion of diverse participants to promote leveraged growth and modularity of offerings. Despite being closely linked, several aspects of platforms are often studied exclusively from their ecosystems, lacking integrative insights on the topic of platform ecosystems. Most studies are tunnel focussed on the technical aspects, failing to account for the social factors that play a critical role within platform firms. In addressing this gap, the study aims to review research on both social and technical aspects of platform ecosystems to account for the complex interdependencies stemming from platform-oriented actor interactions. The study extends beyond a typical literature review approach to also include a theoretically grounded, yet practically relevant framework of socio-technical systems to offer a holistic review of literature on how platform ecosystems function and sustain in competitive environments.

Published
2021

45. Lethal and sublethal effects of two new insecticides spirotetramat and flupyradifurone in comparison to conventional insecticide deltamethrin on Trichogramma evanescens (Hymenoptera: Trichogrammatidae)

Author

Masumeh Ziaee, Parviz Shishehbor, Fatemeh Tabebordbar, and Fariba Sohrabi

Subjects
0106 biological sciences, 0301 basic medicine, education.field_of_study, biology, Population, Trichogramma evanescens, Flupyradifurone, Hymenoptera, biology.organism_classification, Fecundity, 01 natural sciences, Toxicology, 010602 entomology, 03 medical and health sciences, chemistry.chemical_compound, 030104 developmental biology, Deltamethrin, Trichogrammatidae, chemistry, Insect Science, Spirotetramat, education
Abstract

The effects of three insecticides including deltamethrin, spirotetramat and flupyradifurone on pre-imaginal stages of Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) were investigated using dipping method. The mean emergence rate of T. evanescens when exposed to the recommended field concentrations of deltamethrin, spirotetramat and flupyradifurone were 62.8, 84 and 86.1%, respectively while 94.3% of the wasps emerged in the control group. According to the concentration–response experiments, the LC50 values of deltamethrin, spirotetramat and flupyradifurone were 262.9, 274.8 and 334.8 ppm, respectively. The results indicated that lethal (LC50) and sublethal (LC30) concentrations of three tested insecticides significantly reduced the fecundity and longevity of T. evanescens. However, LC30 of spirotetramat and flupyradifurone didn’t influence the oviposition duration of the wasps when compared with the control group. The gross reproductive rate (GRR), intrinsic rates of increases (r), net reproductive rate (R0), and finite rate of increase (λ) were significantly lower in all the treated wasps in comparison with control. However, the mean generation time (T) was not affected by the sublethal concentrations of tested insecticides. According to our findings, all insecticidal treatments have adverse effects on the population of T. evanescens, notwithstanding sublethal concentration of flupyradifurone followed by spirotetramat were more compatible with adults T. evanescens in comparison with deltamethrin. However, further studies under the field conditions are required to confirm the results.

Published
2020

48. A rational approach towards spray drying of biopharmaceuticals: The case of lysozyme

Author

Emmet J. O'Reilly, Mey-Tchieng Ung, Ahmad B. Albadarin, Gavin Walker, Luis Padrela, Ahmad Ziaee, and Tim Femmer

Subjects
chemistry.chemical_classification, Imagination, Materials science, Chemical substance, General Chemical Engineering, Biomolecule, media_common.quotation_subject, 02 engineering and technology, Factorial experiment, 021001 nanoscience & nanotechnology, 030226 pharmacology & pharmacy, law.invention, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Magazine, chemistry, Chemical engineering, law, Spray drying, Scientific method, Lysozyme, 0210 nano-technology, media_common
Abstract

Development of spray drying of biomolecules has proved challenging primarily due to protein instability caused by high drying temperatures and atomization process. This study suggests a two-step approach towards a better understanding of spray drying process of large biomolecules. Using lysozyme as a model biomolecule a full factorial Design of Experiments (DoE) was employed to define the most critical process and formulation parameters. With respect to parameters such as feed rate, outlet temperature (Tout) and feed solid concentration, Tout was determined to be the most significant factor affecting the enzymatic activity. Forced deactivation studies were performed to identify critical points of potential enzymatic degradation during the drying process. Results show that lysozyme in solid form significantly inactivated when heated up to temperatures similar to Tout (70–90 °C). The approaches presented herein provide an improved understanding of the critical process and formulation parameters required for the successful spray drying of biomolecules.

Published
2020

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