Knowledge Monitoring, Goal Orientations, Self-Efficacy, And Academic Performance: A Path Analysis

The purpose of this study was to examine the relationship between knowledge monitoring and motivation as defined by self-efficacy and goal orientations.  A path model was proposed to hypothesize the causal relations among predictors of the students’ total score in the Educational Psychology course.  The sample consisted of undergraduate students enrolled in two sections of the Educational Psychology course at a large Midwestern university.  The data collection process took place during two semesters (Fall 2010 and Spring 2011).  Subjects completed a knowledge monitoring assessment (KMA) and combined scale of self-efficacy and goal orientations online.  Results of the study confirmed the positive correlations between knowledge monitoring, self-efficacy, mastery goals, and total exam score.  The path analysis revealed that two predictors had significant direct effects on total score, knowledge monitoring and mastery goals.  Self-efficacy had a significant direct effect on mastery goals.  Although self-efficacy significantly correlated with total score, the parameter between self-efficacy and total score was not significant.  Knowledge monitoring did not significantly correlate with self-efficacy and mastery goals.  The path analysis revealed no significant exogenous parameters from or to performance goals.  The current study provided some insights in understanding the relationship between knowledge monitoring and motivation as defined by self-efficacy and goal orientations.  Recommendations and suggestions for future research were discussed

The Effect of Using Critical Thinking Activities on Knowledge Monitoring in Science of Seventh Graders in the Sultanate of Oman

The aim of the current study was to investigate the effects of using critical thinking activities in the classroom to enhance and develop students’ knowledge monitoring and whether knowledge monitoring predicts students’ academic achievement in Science. Fifty females were randomly selected from the seventh grade at one of Al-Saeeb province schools in Muscat governorate. Subjects were assigned to an experimental group (n=24) and to a control group (n=26). Both groups were taught same materials by the same teacher. The critical thinking activities were manipulated into the experimental group, whereas the control group received no critical thinking activities. Pre and post tests of knowledge monitoring were obtained. Subjects took an academic test at the end of the experiment. The results demonstrated that knowledge monitoring in experimental group significantly improved. Significant differences were found between pre and post knowledge monitoring in the experimental group. Recommendations and suggestions are discussed

Ovarian Hyperstimulation and Maternal Virilisation with Successful Pregnancy Outcome: A case report

Hyperreactio luteinalis (HL) and ovarian hyperstimulation syndrome (OHSS) during pregnancy are both benign conditions where the ovaries are enlarged with presence of multiple thin-walled cysts. Differential diagnosis is ovarian malignancy. Hyperandrogenism with resultant maternal virilization could be seen in some cases of HL as well as in androgen secreting tumours. We report the case of a 41 years old lady underwent ovulation induction due to secondary infertility. She had recurrent hospital admission with abdominal pain and huge multicystic enlargement of both ovaries. She developed virilisation features by 35 weeks of pregnancy. Lower segment caesarean section was done at 36 weeks gestation for breech presentation with intra uterine growth restriction. Magnetic resonance imaging (MRI) confirmed benign nature of the cysts. Ovarian cysts and hyperandrogenism gradually resolved by three months of delivery. Awareness, judicious imaging and close monitoring in such cases can result in live birth and avoid oophorectomies. Keywords: Hyperandrogenism; Hirsuitism; Virilism; Polycstic ovary syndrome; Ovarian hyper stimulation; Ovulation induction; Hyperreactio luteinalis; Ovarian cysts

Achievement Responsibility and Its Relation to Self-determination Motivation of Foundation Program Students

The current study investigated the relation between achievement responsibility and selfdetermination motivation among foundation program students. It also aimed at identifying the differences in achievement responsibility and the self-determination motivation according to gender and the foundation level. The data was collected from 432 students. The results of the study showed that the students attributed their achievement to internal and unstable factors. Secondly, the students showed a quiet high level of selfdetermination motivation. Thirdly, the results showed no differences due to gender in both achievement responsibility and self-determination motivation. In regards to achievement responsibility, there were statistically significant differences in external and unstable factors according to the level variable for the second and third level. Regarding self-determination motivation, the results revealed statistically significant differences in external regulation and a motivation according to the level in favor of level two and three. The findings also suggested that the external factors seem to be the better predictor factor of self-determination motivation followed by the stable and finally the internal factors

Sufficiency and Efficiency of Field Training for Radiology Students During Internship Experience in Najran University, Saudi Arabia

Purpose: The study was design to evaluate the effectiveness and adequacy of the internship period employing quantitative study descriptive survey approach.   Theoretical framework: Internship is requirement of every student of radiology program of Radiological Sciences patch for the award of bachelor's degree at Najran University, Saudi Arabia. The competency level would demonstrate influence the sufficiency and efficiency of clinical training during internship period which represent six months after completing nine levels of radiology program.   Design\Methodology\Approach: The survey was distributed to the tow levels of the last year of radiological sciences which composed of 81 male and female students which gathered seventy-seven (77) participants. Data collected through a questionnaire and summarized as percentages, frequencies, means and standard deviations using SPSS version 20.0.   Findings: The study revealed un adequacy of the internship period and showed low efficiency due to its short duration.   Research, Practical, Social Implication:The research construct and variables are identified the effectiveness and adequacy of the internship period.this  study will be the modele of internship with a new qualitative change related to a period of time acceptable to students, similar to other universities.   Originality/Value: The originality and value in this study are the framework conceptance and questionnaire that prepared and proved for evaluating the effectiveness and adequacy of the internship period for student of radiology program.   Conclusion: In general internship period must be efficient and adequate to enhance sufficiency and efficiency experience by intern trainees

The Effectiveness of E-Mentoring Program to Develop Mothers Awareness of Protecting their Children from Sexual Harassment in Kindergarten

The research aims to measure the effectiveness of an E-mentoring program to educate mothers about the mechanisms of protecting children from sexual harassment and to identify the symptoms and methods that must be followed when kindergarten children are subjected to harassment, in order to answer the research questions, the semi- experimental approach was used because it is the most appropriate for the nature of the research to rely on changing something and studying the impact of this change on something else, and a random sample of mothers of children enrolled in kindergarten. The research tools consist of an electronic counselling program to develop mothers awareness on mechanisms to protect their children from sexual harassment in kindergarten by researchers, as well as a questionnaire to measure mothers awareness of mechanisms to protect their children from sexual harassment in kindergartens prepared by researchers. One of the most prominent findings of the research is that the indicative level of mothers awareness of the symptoms of sexual harassment of their children in kindergarten, their protection mechanisms, and the methods to be followed when sexually harassing children was less than 0.05, which indicates that there are differences in favor of the dimensional measurement, which proves the effectiveness of the program in improving mothers awareness of mechanisms to protect their children from sexual harassment in kindergarten

Sandstone matrix acidizing knowledge and future development

To meet rising global demands for energy, the oil and gas industry continuously strives to develop innovative oilfield technologies. With the development of new enhanced oil recovery techniques, sandstone acidizing has been significantly developed to contribute to the petroleum industry. Different acid combinations have been applied to the formation, which result in minimizing the near wellbore damage and improving the well productivity. A combination of hydrofluoric acid and hydrochloric acid (HF:HCl) known as mud acid has gained attractiveness in improving the porosity and permeability of the reservoir formation. However, high-temperature matrix acidizing is now growing since most of the wells nowadays become deeper and hotter temperature reservoirs, with a temperature higher than 200 °F. As a result, mud acid becomes corrosive, forms precipitates and reacts rapidly, which causes early consumption of acid, hence becoming less efficient due to high pH value. However, different acids have been developed to combat these problems where studies on retarded mud acids, organic-HF acids, emulsified acids, chelating agents have shown their effectiveness at different conditions. These acids proved to be alternative to mud acid in sandstone acidizing, but the reaction mechanism and experimental analysis have not yet been investigated. The paper critically reviews the sandstone acidizing mechanism with different acids, problems occurred during the application of different acids and explores the reasons when matrix stimulation is successful over fracturing. This paper also explores the future developing requirement for matrix acidizing treatments and new experimental techniques that can be useful for further development, particularly in developing new acids and acidizing techniques, which would provide better results and information of topology, morphology and mineral dissolution and the challenges associated with implementing these “new” technologies

Investigation of Changing Pore Topology and Porosity during Matrix Acidizing using Different Chelating Agents

Core flooding acidizing experiments on sandstone/carbonate formation are usually performed in the laboratory to observe different physical phenomena and to design acidizing stimulation jobs for the field. During the tests, some key parameters are analyzed such as pore volume required for breakthrough as well as pressure. Hydrochloric acid (HCl) is commonly used in the carbonate matrix acidizing while Mud acid (HF: HCl) is usually applied during the sandstone acidizing to remove damage around the well bore. However, many problems are associated with the application of these acids, such as fast reaction, corrosion and incompatibility of HCl with some minerals (illite). To overcome these problems, chelating agents (HEDTA, EDTA and GLDA) were used in this research. Colton tight sandstone and Guelph Dolomite core samples were used in this study. The experiments usually are defined in terms of porosity, permeability, dissolution and pore topology. Effluent samples were analyzed to determine dissolved iron, sodium, potassium, calcium and other positive ions using Inductively Coupled Plasma (ICP). Meanwhile Nuclear Magnetic Resonance (NMR) was employed to determine porosity and pore structure of the core sample. Core flood experiments on Berea sandstone cores and dolomite samples with dimensions of 1.5 in × 3 in were conducted at a flow rate of 1 cc/min under 150oF temperature. NMR and porosity analysis concluded that applied chemicals are effective in creating fresh pore spaces. ICP analysis concluded that HEDTA showed good ability to chelate calcium, sodium, magnesium, potassium and iron. It can be established from the analysis that HEDTA can increase more amount of permeability as compared to other chelates

A preliminary screening and characterization of suitable acids for sandstone matrix acidizing technique: a comprehensive review

Matrix acidizing is a broadly developed technique in sandstone stimulation to improve the permeability and porosity of a bottom-hole well. The most popular acid used is mud acid (HF–HCl). It is a mixture of hydrofluoric acid and hydrochloric acid. However, one of the conventional problems in sandstone acidizing is that mud acid faces significant issues at high temperature such as rapid rate of reaction, resulting in early acid consumption. This downside has given a negative impact to sandstone acidizing as it will result in not only permeability reduction, but can even extend to acid treatment failure. So, the aim of this study is to provide a preliminary screening and comparison of different acids based on the literature to optimize the acid selection, and targeting various temperatures of sandstone environment. This paper has comprehensively reviewed the experimental works using different acids to understand the chemical reactions and transport properties of acid in sandstone environment. The results obtained indicated that fluoroboric acid (HBF4) could be useful in enhancing the sandstone acidizing process, although more studies are still required to consolidate this conclusion. HBF4 is well known as a low damaging acid for sandstone acidizing due to its slow hydrolytic reaction to produce HF. This would allow deeper penetration of the acid into the sandstone formation at a slower rate, resulting in higher porosity and permeability enhancement. Nevertheless, little is known about the effective temperature working range for a successful treatment. Considering the pros and cons of different acids, particularly those which are associated with HF and HBF4, it is recommended to perform a comprehensive analysis to determine the optimum temperature range and effective working window for sandstone acidizing before treatment operation. Prior to sandstone acid stimulation, it is essential to predict the feasibility of acid selected by integrating the effects of temperature, acid concentration and injection rate. Therefore, this manuscript has thrown light into the research significance of further studies