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The effect of using active learning model in the achievement of fourth -grade material in the de partment of physics teaching aids students and the development then critical thinking
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Goal  of  research  is  to  investigate  the  impact  of the  use  of  effective  learning  model in the  collection  of  the  fourth  grade  students/Department of  physics in the material  educational methods  and the  development  of  critical thinking  .to teach  this goal  has  been  formulated  hypothesis cefereeten zero  subsidiary  of the second hypothesis  .To  investigate  the  research  hypothesis  were  selected  sample  of  fourth-grade  students of the  department  of physics at the university for the academic year (2015-2016) the sum of its members reached (71) students .and distributed this sample in to two divisions.one representing the exberimental groub and the other group represents the control and by (35-36)students respectively.i was conducted parity processon the two sets of search variables(intelligence.the collection of physics for previous year .chronological age.critical thinking). It has been teaching the experimental groub .according to the model of effective learnin g and the control  group according to the usual way. The researcher creating the necessary supplies for research and of identifying scientific material and formulation of behavioral purposes of article specific and preparing  lesson plans teach the experimental and control groups.according to the model of effective learning and the way ordinary.as well as carrying out the provision of teaching aids and tools laboratory of application experience.and requests the search and there are two tools.The first achievement test in the supject of the teaching aids where the researcher prepared and be in its final form(45) paragraph checksums objective of pairing tybe (conforming) and multiple choice surgeon (fill in the blanks) has been marked by total test honesty and consistency have been extracted difficulty discriminatory and strength to the level of paragraphs and all werew ithin the acceptable rang the difficulty and discrimination as well as the effectiveness of alternatives to the wrong vertebrae multiple choice.the second tool they test critical thinking prepared by (al-alwani.1999)and be its final form of the (75)paragraph checksums distributed(5)areas to measure the mental capacity critic representative skills (finding.evaluating arguments knowledge of assumptions.deducation.interpretation)has only researcher extracted sincerity and persistence. Abblied exberience .starting from the first semester of the academic year (2015-2016) as has beenthe bar-test procedure for critical thinking of students on the research sample (18/10/2015)and began to exberiment on (19/10/2015)and lasted on antire semester by three hours aweek to be Total college classes(27hours) for each groub.the experiment was completed after the application tools(achievement test and test critical thinking posttest)date(24/12/2015).After date collection and statistical analysis using altaia test for two independent samples:showed results as follows

1-There is astatistically significant difference between the average achivevment of the two sets of research in educational material means and in the experimental group

2-There is a statistically significant difference between the average skill development (conclusion.deduction.interpretation .and critical thinking as awhole)to the tow sets of search and infavor of the experimental group.in light of the search results researcher came out with a number 0f conclusions including the effectiveness of the model of effective learning(activelearning)in the collection of the fourth grade students of the physics department at the material educational methods and the development ofcritical thinking compared to the usual way.the researcher recommended a number of recommendations.including the establishment of training courses for teachers of physics on the use of model and new strategies in teaching including a model of effective learning(active learning) as well as attention to jean-authored book include book physics intellectual and skill activities including stimulates the energies of students and enhances their thinking in general skills and critical thinking in particular.complementing the current research .scholar proposals for future research mode

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Publication Date
Tue Mar 13 2018
Journal Name
Mustansiria Dental Journal
Dimensional stability of heat-activated acrylic resin at different time intervals by different flask cooling methods
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This study was design to investigate the dimensional stability of heat-activated acrylic resin with different methods of flask cooling (15 minutes rapid cooling, one hour bench cooling, four hours delayed deflasking, and 24 hours delayed deflasking) at different time intervals (immediately, two days, seven days, 30 days) after deflasking. Heat-activated acrylic resin was used to prepare acrylic samples. Then, measurement of the distances where achieved between the centers of selected marks in the acrylic samples. They were measured at different time intervals for different methods of flask cooling. The results showed that the group samples of the four hours and 24 hours of delayed deflasking was insignificantly different from the control an

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Publication Date
Thu Feb 11 2016
Journal Name
Journal Of Materials Science: Materials In Electronics
Electrochemical deposition of CdSe-sensitized TiO2 nanotube arrays with enhanced photoelectrochemical performance for solar cell application
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Publication Date
Thu Dec 15 2011
Journal Name
Iraqi Journal Of Laser
Generation of Truly Random QPSK Signal Waveforms for Quantum Key Distribution Systems Based on Phase Coding
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In this work a model of a source generating truly random quadrature phase shift keying (QPSK) signal constellation required for quantum key distribution (QKD) system based on BB84 protocol using phase coding is implemented by using the software package OPTISYSTEM9. The randomness of the sequence generated is achieved by building an optical setup based on a weak laser source, beam splitters and single-photon avalanche photodiodes operating in Geiger mode. The random string obtained from the optical setup is used to generate the quadrature phase shift keying signal constellation required for phase coding in quantum key distribution system based on BB84 protocol with a bit rate of 2GHz/s.

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Publication Date
Sat Sep 01 2018
Journal Name
Journal Of Pharmaceutical Sciences And Research
Farnesoid X receptor is an exciting new perspective target for treatment of diverse pathological disorders: Review
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Publication Date
Mon Dec 31 2012
Journal Name
Al-khwarizmi Engineering Journal
Genetic Algorithm Based PID Controller Design for a Precise Tracking of Two-Axis Piezoelectric Micropositioning Stage
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 In this paper, an intelligent tracking control system of both single- and double-axis Piezoelectric Micropositioner stage is designed using Genetic Algorithms (GAs) method for the optimal Proportional-Integral-Derivative (PID) controller tuning parameters. The (GA)-based PID control design approach is a methodology to tune a (PID) controller in an optimal control sense with respect to specified objective function. By using the (GA)-based PID control approach, the high-performance trajectory tracking responses of the Piezoelectric Micropositioner stage can be obtained. The (GA) code was built and the simulation results were obtained using MATLAB environment. The Piezoelectric Micropositioner simulation model with th

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Publication Date
Sat Jan 01 2022
Journal Name
Journal Of Engineering
Efficient Energy Management for a Proposed Integrated Internet of Things-Electric Smart Meter (2IOT-ESM) System
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In this work, an efficient energy management (EEM) approach is proposed to merge IoT technology to enhance electric smart meters by working together to satisfy the best result of the electricity customer's consumption. This proposed system is called an integrated Internet of things for electrical smart meter (2IOT-ESM) architecture. The electric smart meter (ESM) is the first and most important technique used to measure the active power, current, and energy consumption for the house’s loads. At the same time, the effectiveness of this work includes equipping ESM with an additional storage capacity that ensures that the measurements are not lost in the event of a failure or sudden outage in WiFi network. Then then these

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Publication Date
Tue Feb 13 2018
Journal Name
Journal Of Optics
Solar selective performance of metal nitride/oxynitride based magnetron sputtered thin film coatings: a comprehensive review
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Publication Date
Wed Feb 01 2023
Journal Name
Colloid Journal
Application of Hydrophilic Lipophilic Difference Theory for Fenofibrate Formulation as a Self-Emulsifying Drug Delivery System
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Improved oral bioavailability of lipophilic substances can be achieved using self-emulsifying drug delivery systems. However, because the properties of self-emulsifying are greatly influenced by surfactant amount and type, type of oil used, droplet size, charge, cosolvents, and physiological variables, the synthesis of self-emulsifying is highly complex; consequently, only a small number of excipient self-emulsifying formulations has been developed so far for clinical use. This study reports a highly effective procedure for developing self-emulsifying formulations using a novel approach based on the hydrophilic-lipophilic difference theory. Microemulsion characteristics, such as the constituents and amounts of oil and surfactant electrolyte

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Publication Date
Sun Dec 01 2019
Journal Name
Al-khwarizmi Engineering Journal
Free Vibration Analysis of Laminated Composite Plates with General Boundary Elastic Supports Under Initial Thermal Load
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Free vibration behavior was developed under the ratio of critical buckling temperature of laminated composite thin plates with the general elastic boundary condition. The equations of motion were found based on classical laminated plate theory (CLPT) while the solution functions consists of trigonometric function and a continuous function that is added to guarantee the sufficient smoother of the so-named remaining displacement function at the boundaries, in this research, a modified Fourier series were used, a generalized procedure solution was developed using Ritz method combined with the imaginary spring technique. The influences of many design parameters such as angles of layers, aspect ratio, thickness ratio, and ratio of initial in-

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Publication Date
Sat Jan 01 2022
Journal Name
Journal Of Engineering
Efficient Energy Management for a Proposed Integrated Internet of Things-Electric Smart Meter (2IOT-ESM) System
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In this work, an efficient energy management (EEM) approach is proposed to merge IoT technology to enhance electric smart meters by working together to satisfy the best result of the electricity customer's consumption. This proposed system is called an integrated Internet of things for electrical smart meter (2IOT-ESM) architecture. The electric smart meter (ESM) is the first and most important technique used to measure the active power, current, and energy consumption for the house’s loads. At the same time, the effectiveness of this work includes equipping ESM with an additional storage capacity that ensures that the measurements are not lost in the event of a failure or sudden outage in WiFi network. Then then these measurement

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