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- 저자 : Almarwani Abeer (검색결과 2 건)
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Do aminopyridinium-based ionic liquids promising to control Culex pipiens mosquitoes in the future?
Ibrahim Reda,Alahmadi Saeed,Almarwani Abeer,Shawer Dalia,Ali Medhat 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.4
In Al-Madinah Al-Munawwarah region, Kingdom of Saudi Arabia, Culex pipiens is considered one of the most common mosquitoes. Owing to their exceptional chemical, physical, biological, and eco-friendly properties, ionic liquids (ILs) have been recently considered promising compounds in managing a variety of organisms. Six aminopyridinium-based IL derivatives were assessed to follow their efficacy against adults of C. pipiens. Mosquitoes were treated with aminopyridinium-based IL derivatives either orally or by spraying. It was observed in the first three days of treatment that the accumulated mortality rates were generally higher in sprayed mosquitoes with IL derivatives than their accumulated mortality rates in orally treated mosquitoes with the same ILs. It was also observed that the accumulated mortalities of sprayed mosquitoes at 0.125 and 0.25 g/L were higher than those in mosquitoes orally treated with the same concentrations. The highest mortality rates were 64 and 80% for sprayed and orally treated mosquitoes, respectively. The mode of action of aminopyridinium-based IL derivatives was tracked, and it is demonstrated to be through the digestive route for orally treated mosquitoes. This is the first study to show the adulticidal effects of aminopyridinium-based ILs in controlling C. pipiens.
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Almaleki, Deyab A.,Bushnaq, Afrah A.,Altayyari, Basmah A.,Alshumrani, Amenah N.,Aloufi, Ebtesam H.,Alharshan, Najah A.,Almarwani, Ashwaq D.,Al-yami, Abeer A.,Alotaibi, Abeer A.,Alhazmi, Nada A.,Al-Boq International Journal of Computer ScienceNetwork S 2021 International journal of computer science and netw Vol.21 No.7
This study aimed to examine the Factor Structure of the teacher satisfaction scale (TSS) with distance education during the Covid-19 pandemic, as well as affirming the (Factorial Invariance) according to gender variable. It also aimed at identifying the degree of satisfaction according to some demographic variables of the sample. The study population consisted of all teachers in public education and faculty members in higher education in the Kingdom of Saudi Arabia. The (TSS) was applied to a random sample representing the study population consisting of (2399) respondents. The results of the study showed that the scale consists of five main factors, with a reliability value of (0.94). The scale also showed a high degree of construct validity through fit indices of the confirmatory factor analysis. The results have shown a gradual consistency of the measure's invariance that reaches the third level (Scalar-invariance) of the Measurement Invariance across the gender variable. The results also showed that the average response of the study sample on the scale reached (3.74) with a degree of satisfaction, as there are no statistically significant differences between the averages of the study sample responses with respect to the gender variable. While there were statistically significant differences in the averages with respect to the variable of the educational level in favor of the middle school and statistically significant differences in the averages attributed to the years of experience variable in favor of those whose experience is less than (5) years.
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