The effectiveness of using the diagnostic and curative teaching for the treatment of attainment difficulties of jurisprudence and develop of attitude of third grade preparatory students

The current study aims to use a strategy based upon the diagnostic and the curative teaching of the jurisprudence to develop the attainment and direction of the third grade preparatory students towards the proposed teaching strategy. The sample of this study consisted of 98 students divided into two groups: 49 students in the experimental group and 49 students in the control group using the experimental curriculum and two methods; the summative assessment and the direction scale. The study showed that there are static inequalities between the average grades of the two groups on the cognitive levels: remembrance، understanding، applying، analyzing، synthesis and evaluation in favor of the experimental group and concluded that there are inequalities between the adequacy level and the experimental average level of the student\u27s grades on the direction scale in favor of the experimental average .that means the high level of the experimental group direction toward the diagnostic and curative teaching strategy

Monitoring of Outdoor and Indoor Air Particulate Matter (PM10) at Buildings Located in An Industrial District

Particulate matter (PM10) pollution has become a problem of significant impact in many countries and cities due to its dangerous effects on public health and environmental balance. The current study aims to monitor the indoor and outdoor PM10 concentrations of the buildings located next to an industrial area that releasing industrial fumes. Three buildings were selected to be investigated. Two factors were considered in the current study, including the outdoor PM10 and wind speed. Response surface methodology (RSM) design was used to identify the relationship between the outdoor and indoor PM10 concentration (I/O) through the ANOVA analysis (P<0.05). The obtained results of PM10 concentrations were showed an acceptable concentration (PM10.In.max= 34 µg.m-3, PM10.Out.max= 77 µg.m-3) compared to the Malaysian standard of Practice (DOSH) and RMAAQG (150 µg.m-3) for the selected areas. The investigation was showed a relationship between PM10.in, PM10.out, and the wind speed with a significant ANOVA factor (P < 0.05). The study findings are considered a knowledge contribution of the PM10 concentrations on the relationship of indoor and outdoor air quality for building surrounded by factories

An Overview of Dye Wastewater and Its Treatment via Coagulation-Flocculation with Iron Chloride

The chapter discusses an overview of the removal of colour, COD, turbidity and TSS from dye wastewater using iron chloride as a coagulant in coagulation-flocculation process. This chapter explained dye wastewater definition and characteristics, dye wastewater treatment methods and factors that influence the coagulation-flocculation processes of dye wastewater treatment. The chapter also gives an explanation about various chemical coagulant used in dye wastewater treatment process and the efficiency of these coagulants

Microbial fuel cell systems; developments, designs, efficiencies, and trends: A comparative study between the conventional and innovative systems

The microbial fuel cell (MFC) technology has appeared in the late 20th century and received considerable attention over the last decade due to its multiple and unique potential in converting the substrates into electricity and valuable productions. Extensive efforts have been paid to improve the MFCs performance, leading to the publication of a massive amount of research that developed various aspects of these systems. Most of these improvements have focused on optimization parameters, which is currently inappropriate to provide an inno�vational developing vision for MFC systems. The convergent results in most of the previous conventional studies (12,643 studies according to the WOS database) have reduced the value of MFCs by drawing an incomplete image for the performance of the systems. Therefore, this paper aimed to provide a comprehensive comparison between the highly reliable studies that innovatively developed the MFC systems and the conventional MFCs studies. The current paper discusses the novel MFCs development history, designs, efficiency, and challenges compared to conventional MFCs. The discussion has displayed the high efficiency of the novel MFCs in removing over 90% of substrates and generating power of 800 mW m− 2 . The paper also analyzed the literature trends, history and suggested recommendations for future studies. This is the first paper highlighting the substantial differences between the innovative and conventional MFC systems, nominating it to be a vital reference for novel MFCs studies in the future

Enhanced pharmaceutically active compounds productivity from streptomyces SUK 25: Optimization, characterization, mechanism and techno-economic analysis

The present research aimed to enhance the pharmaceutically active compounds’ (PhACs’) productivity from Streptomyces SUK 25 in submerged fermentation using response surface methodology (RSM) as a tool for optimization. Besides, the characteristics and mechanism of PhACs against methicillin-resistant Staphylococcus aureus were determined. Further, the techno-economic analysis of PhACs production was estimated. The independent factors include the following: incubation time, pH, temperature, shaker rotation speed, the concentration of glucose, mannitol, and asparagine, although the responses were the dry weight of crude extracts, minimum inhibitory concentration, and inhibition zone and were determined by RSM. The PhACs were characterized using GC-MS and FTIR, while the mechanism of action was determined using gene ontology extracted from DNA microarray data. The results revealed that the best operating parameters for the dry mass crude extracts production were 8.20 mg/L, the minimum inhibitory concentrations (MIC) value was 8.00 µg/mL, and an inhibition zone of 17.60 mm was determined after 12 days, pH 7, temperature 28 °C, shaker rotation speed 120 rpm, 1 g glucose /L, 3 g mannitol/L, and 0.5 g asparagine/L with R2 coefficient value of 0.70. The GC-MS and FTIR spectra confirmed the presence of 21 PhACs, and several functional groups were detected. The gene ontology revealed that 485 genes were upregulated and nine genes were downregulated. The specific and annual operation cost of the production of PhACs was U.S. Dollar (U.S.D) 48.61 per 100 mg compared to U.S.D 164.3/100 mg of the market price, indicating that it is economically cheaper than that at the market price

Barriers to ICT use in science teaching: a comparative analysis of Malaysian and Saudi science teachers

Despite the efforts expended by the governments of Malaysia and Saudi Arabia to promote science teachers’ use of ICT in the classroom, the ICT uptake among these teachers remains slow and dismal. This article reports on a study undertaken to explore and understand the barriers that prevented science teachers in both countries from using ICT in their science instruction. A total of 282 science teachers from selected schools (53.5% Malaysian and 46.5% Saudi) responded to the survey. Principal components analysis (PCA) run on the data extracted four underlying factors that prevented the respondents from using ICT to teach, namely attitude towards ICT use, access to ICT at school, beliefs about ICT use and technical support provided by the school to promote ICT utilization. Among these four factors, attitude towards ICT emerged as the largest inhibitor, explaining about 25.5% of teachers’ lack of ICT uptake in the science classroom. T-test results revealed significant differences between Malaysian and Saudi teachers in terms of access to ICT and technical support, but no significant difference in terms of attitude and beliefs about ICT use. The results corroborated previous findings that teacher factors tend to outweigh school factors in promoting or hindering teachers’ uptake of technolog