The synergistic effects of Carum copticum essential oil on diatomaceous earth against Sitophilus granarius and Tribolium confusum

Masumeh Ziaee,Saeid Moharramipour,Jacek Francikowski 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.4

In this study, synergistic/antagonistic interaction between Carum copticum (L.) powder and essential oil with diatomaceousearths (DEs) was assessed against Tribolium confusum Jacquelin du Val. and Sitophilus granarius (L.)adults. The obtained synergistic interactionwas interpreted by measurement of insects' locomotor activity whenexposed to C. copticum essential oil. Essential oil had strong fumigant toxicity against adult insects; however, toxicitydiminished in the presence of wheat commodity. Plant essential oil synergized the performance of DE samplessuch that they generally became more insecticidal than DE alone. However, plant powder effects wereantagonistic; effects were not as severe as predicted in terms of the insect mortality. Insects' locomotor activityincreased significantlywhen exposed to C. copticumessential oil. These results support the hypothesis that essentialoil can enhance the efficacy of DE, at least by increasing locomotor activity and insect-contact toxicity of DEparticles. Therefore, combination of essential oil with DE could have potential for use in integrated storedproductpest-management programs.

Efficacy of Iranian diatomaceous earth deposits against Tribolium confusum Jacquelin du Val (Coleoptera: Tenebrionidae)

Masumeh Ziaee,Saied Moharramipour 한국응용곤충학회 2012 Journal of Asia-Pacific Entomology Vol.15 No.4

Laboratory bioassays were carried out to evaluate the insecticidal efficacy of two Iranian deposits of diatomaceous earths (DEs) and a commercial formulation, SilicoSec®, against adult confused flour beetle (Tribolium confusum Jacquelin du Val). The Iranian DEs were dried and sieved to get particle sizes of 0–149, 74–149,0–74 μm, and 0–37 μm. First, DE samples were applied at the four concentration levels of 500, 1000, 1500 and 2000 ppm and each concentration was replicated four times. Tests were carried out at 27±1 °C and 55±5%r.h. in continuous darkness. The beetle mortality was counted at 2, 7, and 14 days after exposure. Moreover, another experiment was conducted to estimate the LC50 values of the DEs. For the first experiment, adult beetle mortality exceeded 51% when exposed for 2 d to 2000 ppm of SilicoSec®. Complete mortality was recorded at each concentration of SilicoSec® at an exposure longer than 7 days except for 500 ppm; while mortalities of T. confusum at 2000 ppm of Maragheh and Mamaghan samples with the 0–149 μm particle sizewere 40.62% and 85.41%, respectively. Mortality of T. confusum was influenced by concentration and time of exposure to the DEs. SilicoSec® was the most effective DE followed by Mamaghan samples. The Maragheh samples were the least effective. In addition, in most cases fractions with smaller particles were more effective than larger ones. More experiments are necessary to process natural DEs and make them commercially exploitable.

Prioritizing the Components Affecting Patient`s Satisfaction with Healthcare Services using Multiple Attribute Decision Making Technique

Seyed Ali Ziaee Azimi,Ahmad Makui 대한산업공학회 2017 Industrial Engineeering & Management Systems Vol.16 No.4

Given the increasing importance of patient’s satisfaction with healthcare services in the management planning and decision making, the aim of this study is to identify and prioritize the components affecting patients’ satisfaction with healthcare public hospitals using SERVQUAL developed model and Multiple Attribute Decision Making (MADM). This is an applied study in terms of goal and the method and the nature of the study is descriptive survey. Statistical population consisted of all the patients who were admitted in one of the clinics of public hospitals in Tehran and data were collected using SERVQUAL model questionnaire. After the reliability and validity test, SAW and TOPSIS and ELECTRE techniques were used in order to prioritize the components affecting patient’s satisfaction and finally, the results of different techniques were combined together using Copeland Method and a ranking of the components was obtained. The results show that the most important components affecting patient’s satisfaction with the healthcare services from consumers’ perspective including “employing employees with sufficient knowledge and skills,” “new facilities of clinic,” and “assurance” are of the highest importance and the cost is almost the least importance.

Global Political Islam

Ali Akbar Ziaee 서울대학교행정대학원 2014 Asian Journal of Political Science Vol.22 No.3

Prioritizing the Components Affecting Patient's Satisfaction with Healthcare Services using Multiple Attribute Decision Making Technique

Azimi, Seyed Ali Ziaee,Makui, Ahmad Korean Institute of Industrial Engineers 2017 Industrial Engineeering & Management Systems Vol.16 No.4

Given the increasing importance of patient's satisfaction with healthcare services in the management planning and decision making, the aim of this study is to identify and prioritize the components affecting patients' satisfaction with healthcare public hospitals using SERVQUAL developed model and Multiple Attribute Decision Making (MADM). This is an applied study in terms of goal and the method and the nature of the study is descriptive survey. Statistical population consisted of all the patients who were admitted in one of the clinics of public hospitals in Tehran and data were collected using SERVQUAL model questionnaire. After the reliability and validity test, SAW and TOPSIS and ELECTRE techniques were used in order to prioritize the components affecting patient's satisfaction and finally, the results of different techniques were combined together using Copeland Method and a ranking of the components was obtained. The results show that the most important components affecting patient's satisfaction with the healthcare services from consumers' perspective including "employing employees with sufficient knowledge and skills," "new facilities of clinic," and "assurance" are of the highest importance and the cost is almost the least importance.

Human parvovirus B19 and parvovirus 4 among Iranian patients with hemophilia

Davod Javanmard,Masood Ziaee,Hadi Ghaffari,Mohammad Hasan Namaei,Ahmad Tavakoli,Hamidreza Mollaei,Mohsen Moghoofei,Helya Sadat Mortazavi,Seyed Hamidreza Monavari 대한혈액학회 2017 Blood Research Vol.52 No.4

Background: Human parvovirus B19 (B19V) is one of the smallest DNA viruses and shows great resist-ance to most disinfectants. Therefore, it is one of the common contaminant pathogens present in blood and plasma products. Parvovirus 4 (PARV4) is a newly identified parvovi-rus, which is also prevalent in parenteral transmission. In this study, we aimed to evaluate the prevalence of B19V and PARV4 DNA among patients with hemophilia in Birjand County in eastern Iran. Methods: This was a cross-sectional epidemiological study comprising nearly all people with hemo-philia in this region. Whole blood samples were taken after patient registration and sent for plasma isolation. After nucleic acid extraction, B19V was detected with real-time poly-merase chain reaction, PARV4 DNA was then detected using sensitive semi-nested PCR. Results: In total, there were 86 patients with hemophilia, with mean age 28.5±1.5 years. Of these, 90.7% were men and 9.3% women; 84.9% had hemophilia A and 7.0% had hemophilia B. We found 11 patients (12.8%) were positive for B19V DNA and 8 were positive (9.3%) for PARV4 DNA. The prevalence of B19V was higher in middle-aged groups rather than younger people, whereas PARV4 infection was more common in younger patients (P<0.05). Conclusion: There was a high prevalence of B19V and PARV4 infection in this high-risk group of pa-tients with hemophilia. Due to the clinical significance of the B19 virus, imposing more precautionary measures for serum and blood products is recommended.

Human parvovirus B19 and parvovirus 4 among Iranian patients with hemophilia

Davod Javanmard,Masood Ziaee,Hadi Ghaffari,Mohammad Hasan Namaei,Ahmad Tavakoli,Hamidreza Mollaei,Mohsen Moghoofei,Helya Sadat Mortazavi,Seyed Hamidreza Monavari 대한혈액학회 2017 Blood Research Vol.51 No.4

Background: Human parvovirus B19 (B19V) is one of the smallest DNA viruses and shows great resist-ance to most disinfectants. Therefore, it is one of the common contaminant pathogens present in blood and plasma products. Parvovirus 4 (PARV4) is a newly identified parvovi-rus, which is also prevalent in parenteral transmission. In this study, we aimed to evaluate the prevalence of B19V and PARV4 DNA among patients with hemophilia in Birjand County in eastern Iran. Methods: This was a cross-sectional epidemiological study comprising nearly all people with hemo-philia in this region. Whole blood samples were taken after patient registration and sent for plasma isolation. After nucleic acid extraction, B19V was detected with real-time poly-merase chain reaction, PARV4 DNA was then detected using sensitive semi-nested PCR. Results: In total, there were 86 patients with hemophilia, with mean age 28.5±1.5 years. Of these, 90.7% were men and 9.3% women; 84.9% had hemophilia A and 7.0% had hemophilia B. We found 11 patients (12.8%) were positive for B19V DNA and 8 were positive (9.3%) for PARV4 DNA. The prevalence of B19V was higher in middle-aged groups rather than younger people, whereas PARV4 infection was more common in younger patients (P<0.05). Conclusion: There was a high prevalence of B19V and PARV4 infection in this high-risk group of pa-tients with hemophilia. Due to the clinical significance of the B19 virus, imposing more precautionary measures for serum and blood products is recommended.

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

Tabebordbar Fatemeh,Shishehbor Parviz,Ziaee Masumeh,Sohrabi Fariba 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.4

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 LC 50 values of deltamethrin, spirotetramat and flupyradifurone were 262.9, 274.8 and 334.8 ppm, respectively. The results indicated that lethal (LC 50 ) and sublethal (LC 30 ) concentrations of three tested insecticides significantly reduced the fecundity and longevity of T. evanescens. However, LC 30 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 (R 0 ), 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.

Buckling analysis of arbitrary two-directional functionally graded nano-plate based on nonlocal elasticity theory using generalized differential quadrature method

Maryam Emadi,Mohammad Zamani Nejad,Sima Ziaee,Amin Hadi 국제구조공학회 2021 Steel and Composite Structures, An International J Vol.39 No.5

In this paper the buckling analysis of the nanoplate made of arbitrary bi-directional functionally graded (BDFG) materials with small scale effects are investigated. To study the small-scale effects on buckling load, the Eringen’s nonlocal theory is applied. Employing the principle of minimum potential energy, the governing equations are obtained. Generalize differential quadrature method (GDQM) is used to solve the governing equations for various boundary conditions to obtain the buckling load of BDFG nanoplates. These models can degenerate into the classical models if the material length scale parameter is taken to be zero. Comparison between the results of GDQ method and other papers for buckling analysis of a simply supported rectangular nano FGM plate reveals the accuracy of GDQ method. At the end some numerical results are presented to study the effects of material length scale parameter, plate thickness, aspect ratio, Poisson’s ratio boundary condition and side to thickness ratio on size dependent Frequency.

Free vibrations analysis of arbitrary three-dimensionally FGM nanoplates

Dehshahri, Kasra,Nejad, Mohammad Zamani,Ziaee, Sima,Niknejad, Abbas,Hadi, Amin Techno-Press 2020 Advances in nano research Vol.8 No.2

In this paper, the free vibrations analysis of the nanoplates made of three-directional functionally graded material (TDFGM) with small scale effects is presented. To study the small-scale effects on natural frequency, modified strain gradient theory (MSGT) has been used. Material properties of the nanoplate follow an arbitrary function that changes in three directions along the length, width and thickness of the plate. The equilibrium equations and boundary conditions of nanoplate are obtained using the Hamilton's principle. The generalized differential quadrature method (GDQM) is used to solve the governing equations and different boundary conditions for obtaining the natural frequency of nanoplate made of three-directional functionally graded material. The present model can be transformed into a couple stress plate model or a classic plate model if two or all parameters of the length scales set to zero. Finally, numerical results are presented to study the small-scale effect and heterogeneity constants and the aspect ratio with different boundary conditions on the free vibrations of nanoplates. To the best of the researchers' knowledge, in the literature, there is no study carried out into MSGT for free vibration analysis of FGM nanoplate with arbitrary functions.