Preferred Language
Articles
/
jperc-207
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
...Show More Authors

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

View Publication Preview PDF
Quick Preview PDF
Publication Date
Wed Oct 01 2025
Journal Name
Journal Of Economics And Administrative Sciences
A Modified Fama-MacBeth Model based on the Single-Index Model
...Show More Authors

The aim of this essay is to use a single-index model in developing and adjusting Fama-MacBeth.  Penalized smoothing spline regression technique (SIMPLS) foresaw this adjustment.  Two generalized cross-validation techniques, Generalized Cross Validation Grid (GGCV) and Generalized Cross Validation Fast (FGCV), anticipated the regular value of smoothing covered under this technique. Due to the two-steps nature of the Fama-MacBeth model, this estimation generated four estimates: SIMPLS(FGCV) - SIMPLS(FGCV), SIMPLS(FGCV) - SIM PLS(GGCV), SIMPLS(GGCV) - SIMPLS(FGCV), SIM PLS(GGCV) - SIM PLS(GGCV). Three-factor Fama-French model—market risk premium, size factor, value factor, and their implication for excess stock returns and portfolio return

... Show More
View Publication Preview PDF
Publication Date
Sat Jul 01 2023
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
Digital transformation technology in the insurance service in the National Insurance Company and the Iraqi General Insurance Company : applied research
...Show More Authors

The aim of this research is to identify the impact of the effectiveness of digital transformation technology in improving the efficiency of the insurance service in the public insurance companies in Iraq through digital transformation technology in the insurance process "promotion of the insurance product, submission of insurance application, underwriting, settlement of losses" and to achieve this goal a questionnaire was designed A survey distributed in the surveyed community Which represents the decision makers in the researched companies under study, and one of the most important results of the research was the existence of a relationship between digital transformation and improving the efficiency of the insurance process, whether thr

... Show More
View Publication Preview PDF
Publication Date
Mon Mar 08 2021
Journal Name
Baghdad Science Journal
Theoretical study to find the thermal stress and strain generated in the Wood silica using lasers
...Show More Authors

In this research study theory to find the stress and emotion gases in the glass as a result of exposure to pulses of the laser beam has been the study using vehicles three major on-system axes cylindrical (r, 0, z), where I took three models of glass silica glass soda glass fused and shedtwo types of lasers where the study showed that the thermal stresses and emotions ...

View Publication Preview PDF
Publication Date
Mon Feb 14 2022
Journal Name
Journal Of Educational And Psychological Researches
Social Skills and its Relationship with Self-Regulation of Gifted Students According to the academic Stage and Gender
...Show More Authors

This study aimed at investigating the level of social skills and its relationship with self-regulation among gifted students according to the academic stage and gender. The sample consisted of (417) male and female students at King Abdullah II School for Excellence in Salt, Jordan. Two instruments were used to collect the data; A scale of social skills and a scale of self-regulation. The results revealed that the level of social skills was high among gifted students. There were statistically significant differences in the social skills among gifted students according to their academic stage in favor of the secondary stage and according to their gender in favor of female students. There were statistically signific

... Show More
View Publication Preview PDF
Publication Date
Sat Nov 01 2014
Journal Name
International Journal Of Basic And Applied Sciences
A reliable iterative method for solving the epidemic model and the prey and predator problems
...Show More Authors

In the present article, we implement the new iterative method proposed by Daftardar-Gejji and Jafari (NIM) [V. Daftardar-Gejji, H. Jafari, An iterative method for solving nonlinear functional equations, J. Math. Anal. Appl. 316 (2006) 753-763] to solve two problems; the first one is the problem of spread of a non-fatal disease in a population which is assumed to have constant size over the period of the epidemic, and the other one is the problem of the prey and predator. The results demonstrate that the method has many merits such as being derivative-free, overcome the difficulty arising in calculating Adomian polynomials to handle the nonlinear terms in Adomian Decomposition Method (ADM), does not require to calculate Lagrange multiplier a

... Show More
View Publication
Crossref (4)
Crossref
Publication Date
Mon Apr 02 2001
Journal Name
University Of Baghdad
Effect of Technology on the Relationship between Form and Structure in Contemporary Interior Space Language.
...Show More Authors

Publication Date
Sun Mar 03 2013
Journal Name
Baghdad Science Journal
Effect of Methotrexate on the Liver Enzymes and Lipid Profile in Adult Female Albino Mice
...Show More Authors

Methotrexate (MTX) was used for treatment of malignancies and now is widely used in treatment of rheumatoid arthritis. In this research the evaluation of the effects of MTX on some liver enzymes and lipid profile was studied. Twenty four adult female mice divided into three groups (8 mice each). The first two groups were treated with MTX while the third group was used as a control. MTX was intraperitoneally given at 50 µg/ml and 75 µg/ml to the first and second groups respectively for 35 days ,whereas the control group was intraperitoneally injected with normal saline. The results showed a significant (p<0.05) increase in serum levels of glutamic oxaloacetate transaminase (GOT) , glutamic pyruric transaminase (GPT), Alkaline pho

... Show More
View Publication Preview PDF
Crossref
Publication Date
Tue Mar 15 2022
Journal Name
Journal Of Baghdad College Of Dentistry
Effect of melatonin supplementation on the gingival health and lipid profiles in obese periodontitis patients
...Show More Authors

Background: Obesity increases the host’s susceptibility by modulating the immune and inflammatory systems in a manner that predisposes to inflammatory tissue destruction and leaves an individual at greater risk of periodontitis. Melatonin is a pineal secretory product involved in numerous actions, such as regulation of internal biological clocks and energy metabolism, and it functions as an antioxidant and anti-inflammatory agent. There exists a substantial amount of evidence supporting the beneficial effect of melatonin supplementation on obesity and its complications. Aim of the study: To investigate the effects of systemic melatonin intake on periodontal health status and lipid profiles in obese periodontitis patients. Subjects and met

... Show More
View Publication Preview PDF
Scopus (4)
Crossref (1)
Scopus Crossref
Publication Date
Wed Jun 08 2022
Journal Name
Applied Sciences
Effect of Adjuvant, Concentration and Water Type on the Droplet Size Characteristics in Agricultural Nozzles
...Show More Authors

One of the goals of adding adjuvants to agricultural spray solutions is to enhance the droplet size characteristics of this spray. Droplet size, in turn, has an influence in the deposited spray quality, in addition to the drift and losses of spray to off-target places. The aim of this research was to evaluate the effect of adding adjuvants to two types of water from different sources on the droplet size characteristics. Two types of adjuvants were employed in the tests: the active substance content of the first adjuvant was a 50% aqueous solution of sodium salt of alkylbenzenesulfonic acid—10% (HY), whereas the second was from rapeseed oil (natural origin)—85% (OL). Both adjuvants were tested in two concentrations: the first was

... Show More
View Publication
Scopus (20)
Crossref (19)
Scopus Clarivate Crossref
Publication Date
Wed Apr 06 2016
Journal Name
Journal Of Water And Health
The effect of chlorine and combined chlorine/UV treatment on coliphages in drinking water disinfection
...Show More Authors

Chlorine disinfection is a globally used method to ensure the safety of drinking water. However, it has not always been successful against viruses and, therefore, it is important to find new methods to disinfect water. Seventeen different coliphages were isolated from the treated municipal wastewater. These coliphages and MS2 were treated with different dosages of chlorine in drinking water, and a combined chlorine/ultraviolet irradiation treatment for the chlorine-resistant coliphages. Chlorine disinfection with 0.3–0.5 mg/L total chlorine (free Cl-dosage 0.12–0.21 mg/L) for 10 min achieved 2.5–5.7 Log10-reductions for 11 sensitive coliphages. The six most resistant coliphages showed no reduction with these chlorine concentra

... Show More
View Publication
Scopus (33)
Crossref (33)
Scopus Clarivate Crossref