The construction process of reception containing rebuild educated new gloss within the context of real-time knowledge with previous experience and learning environment, accounting for all of the real experiences and information beside Education backbones structural climate (olive 0.2002: p. 212 .) Based on two basic principles - : I: - The natural science that we do know from our experiences, we can not say for sure Bhakaigah realism and clearly, but built by creative minds of certain interpretations be applicable in light of our expectations. Other: - The knowledge built effectively active learner who adapts new knowledge with the conceptual framework has, since everyone has a conceptual framework can break at any time and replaced by a new framework leads in turn to a new conceptual framework (Afaneh 0.2001: p. 212 .) And is based in cognitive constructivist theory of learning to the task of assumptions are First: -altalm active ongoing process of structural and object-oriented as this assumption includes the following concepts - : A. constructivism learning process: - that knowledge consists of the previous cognitive structures, as builds the learner's experience of the outside world or from the external environment through seeing cognitive frameworks and structures has, and organizes his experiences with and interpret the world around him perceived . ( B) an active learning process: - learner mentally make any effort to get to the discovery of his own knowledge, this is done when faced with a problem . C-learning object-oriented process: Learning my purpose and has a goal of learner seeks to achieve certain purposes contribute to solving the problem faced by distinctive or answer questions or has a tendency to satisfy a self has to learn what . Second: -thaih the best conditions to learn when the learner faces a real and realistic problem, and this signal to the strategy (Wheatly) contained centered learning about the problem . Third: - Previous knowledge: - a prerequisite for building a sense of learning . Fourth: - the fundamental goal of the learning process is to bring about adaptations (Adaptation) copes with the pressure of cognitive practice on the learner's experience (olive, 2007. p. 45 .) And it provided the theory of Piaget (piajet) a number of ideas and information that can benefit from them in the educational fields all, planning, and this information with respect to stages experienced by the mental development of the learners, and the characteristics of each stage, and in the light of the theory requires the teacher to know the characteristics of learners levels mental development, then begins to plan lessons and educational activities, implementation and choice of methods appropriate teaching based on what fits their level and their previous experience and desires; because Piaget (Piajet) confirmed that the learning be meaningful when taking into account learners' abilities and desires and inclinations, and focused in dealing learner with his environment, since learning about best when dealing with sensible things in the surrounding environment (Abdul Salam 0.2001: p. 98 .) Recruitment model (the Hill) in the teaching of Arabic grammar - : Including the specimen, the Hill deals with concepts and information and facts it is possible that Nozvh in the teaching of Arabic grammar; because the Arabic grammar known of the concepts, information and facts, too, and we can offer information and interpret and Nodhaa and infer them, have identified (the Hill) five stages in teaching The model adopted by (the researcher) in the teaching of Arabic grammar.
The possibility of using activated carbon developed from date palm seeds wastes as a permeable reactive barrier (PRB) to remove copper from polluted shallow groundwater was investigated. The activated carbon has been developed from date palm seeds by dehydrating methods using concentrated sulfuric acid. Batch tests were performed to characterize the equilibrium sorption properties of new activated carbon in copper-containing aqueous solutions, while the sandy soil (aquifer) was assumed to be inert. Under the studied conditions, the Langmuir isotherm model gives a better fit for the sorption data of copper by activated carbon than other models. At a pilot scale, One-dimensional column experiments were performed, and an integrated model ba
... Show More
(20)
(18)
Reducing of ethyl 4-((2-hydroxy-3-methoxybenzylidene)amino)benzoate (1) afford ethyl 4-((2-hydroxy-3-methoxybenzyl) amino)benzoate (2). Reaction of this compound with Vilsmeier reagent affords novel 2-chloro-[1,3] benzoxazine ring (3). The corresponding acid hydrazide of compound 3 was synthesized from reaction of compound (3) with hydrazine hydrate. Newly series of hydrazones(5a–i) were synthesized from reaction of acid hydrazide with various aryl aldehydes. Antibacterial activity of the hydrazones wassecerned utilizing gram-negative and gram-positive bacteria. Compound (5b) and (5c) exhibited significant antibacterial ability against both gram-negative and gram-positive bacteria, while the compounds(5a) showed mild antibacterial activit
... Show More
Sorghum cultivation is often accompanied by low field emergence rates and weak seedlings, which may be due to genetic or environmental stress. A factorial experiment was conducted in the spring and fall seasons of 2022 using a randomized complete block design with split-plot arrangement and four replications. Planting dates (spring season: Feb. 15th, Mar. 1st, 15th, and Apr. 1st, 15th; fall season: Jun. 15th, Jul. 1st, 15th, and Aug. 1st, 15th) were allocated to the main plots. Seeds stimulation treatments (35% banana peel extract + 100 mg L-1 citric acid and distilled water soaking treatment only) were allocated to the subplots. The interaction treatment (banana peel extract + citric acid) with the planting date of April 15 showed the high
... Show More
(153)
(129)
Date palm silver nanoparticles are a green synthesis method used as antibacterial agents. Today,
there is a considerable interest in it because it is safe, nontoxic, low costly and ecofriendly. Biofilm bacteria
existing in marketed local milk is at highly risk on population health and may be life-threatening as most
biofilm-forming bacteria are multidrug resistance. The goal of current study is to eradicate biofilm-forming
bacteria by alternative treatment green synthesis silver nanoparticles. The biofilm formation by bacterial
isolates was detected by Congo red method. The silver nanoparticles were prepared from date palm
(khestawy) fruit extract. The formed nanoparticles were characterized with UV-Vis
(17)
(5)
This research deals with the design and simulation of a solar power system consisting of a KC200GT solar panel, a closed loop boost converter and a three phase inverter by using Matlab / Simulink. The mathematical equations of the solar panel design are presented. The electrical characteristics of the panel are tested at the values of 1000 for light radiation and 25 °C for temperature environment. The Proportional Integral (PI) controller is connected as feedback with the Boost converter to obtain a stable output voltage by reducing the oscillations in the voltage to charge a battery connected to the output of the converter. Two methods (Particle Swarm Optimization (PSO) and Zeigler- Nichols) are used for tuning
... Show More
(6)