In many areas, technology has facilitated many things, diagnosing diseases, regulating traffic and teaching students in schools rely on Intelligent systems to name a few. At present, traditional classroom-based education is no longer the most appropriate in schools. From here, the idea of intelligent e-learning for students to increase their culture and keep them updated in life began. E-learning has become an ideal solution, relying on artificial intelligence, which has a footprint in this through the development of systems based on (...) education without a teacher taking into account the individual differences of students. This study describes intelligent tutoring system for teaching the Data Manipulation Language (DML) Commands Using SQLite to non IT students to overcome the difficulties they face. The System was built as education system by using the researcher own authoring tool that based on mobile and web App. The basic idea of this system is a systematic introduction into the concept of Database and its DML query. The system presents the topic of DML Commands, help student to execute what they are learn from the system content using the practical part of the system and administers automatically adapted at run time to the student’s individual growth. The system was assessed by a group of teachers and students and the outcome showed as 91% from the database specialists, 94% from Diploma students group and 89% from the secondary school students group. (shrink)

Abstract: This research delves into the utilization of Artificial Neural Networks (ANNs) as a powerful tool for predicting the overall ratings of books by leveraging a diverse set of attributes. To achieve this, we employ a comprehensive dataset sourced from Goodreads, enabling us to thoroughly examine the intricate connections between the different attributes of books and the ratings they receive from readers. In our investigation, we meticulously scrutinize how attributes such as genre, author, page count, publication year, and reader reviews (...) influence a book's overall rating. Through rigorous analysis and experimentation, we construct an advanced ANN model tailored for predictive analysis in the realm of book ratings. The outcomes of our study reveal the remarkable potential of ANNs in this domain. The ANN model exhibits an impressive level of accuracy when it comes to forecasting book ratings, underlining the efficacy and promise of artificial neural networks in enhancing our understanding and prediction of book evaluations. This research opens up new avenues for leveraging machine learning techniques to gain deeper insights into the dynamics of book ratings and reader preferences. (shrink)

Abstract: Tomatoes are part of the major crops in food security. Tomatoes are plants grown in temperate and hot regions of South American origin from Peru, and then spread to most countries of the world. Tomatoes contain a lot of vitamin C and mineral salts, and are recommended for people with constipation, diabetes and patients with heart and body diseases. Studies and scientific studies have proven the importance of eating tomato juice in reducing the activity of platelets in diabetics, which (...) helps in protecting them from developing deadly blood clots. A tomato classification approach is presented with a data set containing approximately 5,266 images with 7 species belonging to tomatoes. The Neural Network Algorithms (CNN), a deep learning technique applied widely in image recognition, is used for this task. (shrink)

This paper recovers an important, century-old debate regarding the methodological and metaphysical foundations of dimensional analysis. Consideration of Richard Tolman's failed attempt to install the principle of similitude---the relativity of size---as the founding principle of dimensional analysis both clarifies the method of dimensional analysis and articulates two metaphysical positions regarding quantity dimensions. Tolman's position is quantity dimension fundamentalism. This is a commitment to dimensional realism and a set of fundamental dimensions which ground all further dimensions. The opposing position, developed primarily (...) by Bridgman, is quantity dimension conventionalism. Conventionalism is an anti-realism regarding dimensional structure, holding our non-representational dimensional systems have basic quantity dimensions fixed only by convention. This metaphysical dispute was left somewhat unsettled. It is shown here that both of these positions face serious problems: fundamentalists are committed to surplus dimensional structure; conventionalists cannot account for empirical constraints on our dimensional systems nor the empirical success of dimensional analysis. It is shown that an alternative position is available which saves what is right in both: quantity dimension functionalism. (shrink)

I argue that dimensional analysis provides an answer to a skeptical challenge to the theory of model mediated measurement. The problem arises when considering the task of calibrating a novel measurement procedure, with greater range, to the results of a prior measurement procedure. The skeptical worry is that the agreement of the novel and prior measurement procedures in their shared range may only be apparent due to the emergence of systematic error in the exclusive range of the novel measurement procedure. (...) Alternatively: what if the two measurement procedures are not in fact measuring the same quantity? The theory of model mediated measurement can only say that we _assume_ that there is a common quantity. In contrast, I show that the satisfaction of dimensional homogeneity across the metrological extension is independent evidence for the so-called assumption. This is illustrated by the use of dimensional analysis in high pressure experiments. This results in an extension of the theory of model mediated measurement, in which a common quantity in metrological extension is no longer assumed, but hypothesized. (shrink)

A supplement to "Metaphysics and Convention in Dimensional Analysis, 1914-1917" in HOPOS. Includes a transcription of the correspondence along with an editorial introduction and expository notes.

Physicist Percy Bridgman has been taken by Heather Douglas to be an exemplar defender of an untenable value-free ideal for science. This picture is complicated by a detailed study of Bridgman's philosophical views of the relation between science and society. The normative autonomy of science, a version of the value-free ideal, is defended. This restriction on the provenance of permissible values in science is given a basis in Bridgman's broader philosophical commitments, most importantly, his view that science is primarily an (...) individual commitment to a set of epistemic norms and values. Considerations of external moral or social values are not, on this view, intrinsic to scientific practice, though they have a broader pragmatic significance. What Bridgman takes as the proper relation between science and society is shown through analysis of his many writings on the topic and consideration of his rarely remarked upon involvement in the most problematic example of "Big Science" of his day: the atomic bomb. A reevaluation of Bridgman's views provides a unique characterization of what is at stake in the values in science debate: the normative autonomy of science. (shrink)

This essay was published in the September 2023 edition of Griffith Observer. It is an examination of the curious friendship between writer Aldous Huxley and astronomer Edwin Hubble and its philosophical basis: empiricism. I hope that by consideration of these two thinker''s lives and work light may be shed on each of their ideas and on the 20th century conceptions of empiricism more broadly.

In this paper a symmetry argument against quantity absolutism is amended. Rather than arguing against the fundamentality of intrinsic quantities on the basis of transformations of basic quantities, a class of symmetries defined by the Π-theorem is used. This theorem is a fundamental result of dimensional analysis and shows that all unit-invariant equations which adequately represent physical systems can be put into the form of a function of dimensionless quantities. Quantity transformations that leave those dimensionless quantities invariant are empirical and (...) dynamical symmetries. The proposed symmetries of the original argument fail to be both dynamical and empirical symmetries and are open to counterexamples. The amendment of the original argument requires consideration of the relationships between quantity dimensions. The discussion raises a pertinent issue: what is the modal status of the constants of nature which figure in the laws? Two positions, constant necessitism and constant contingentism, are introduced and their relationships to absolutism and comparativism undergo preliminary investigation. It is argued that the absolutist can only reject the amended symmetry argument by accepting constant necessitism. I argue that the truth of an epistemically open empirical hypothesis would make the acceptance of constant necessitism costly: together they entail that the facts are nomically necessary. (shrink)

In this article, we are trying to deal with the characteristics of Dasein in Heidegger's book Being and Time in a specific and concrete way. In his book, Heidegger wants to show how man accesses Being / Sein. First, he raises the question of being and then says that everything is in the circle of being and asks himself, from which entity should we begin to know being? His answer is to start the knowledge of existence from the existence that (...) questions existence. He calls that Dasein. The reason why Heidegger chose the term “Dasein” instead of man is to save man from the narrowness of previous definitions of man (such as Aristotle's rational animal or Cartesian thinking substance, etc.). He examines his intrinsic and real characteristics, such as sense of situation and understanding, i.e., finding new possibilities; language, which according to Heidegger is the house of being; and also refers to ability and unpredictability. He emphasizes that man as a subject does not have an unchangeable and fixed nature. Each Dasein is personally an incident that temporalizes itself according to the future. Dasein is not pre-determined by nature. He is a historical Dasein who identifies himself with his own self (mienneté) and explains his every behavior to the future. No matter what state a person reaches, he can still appear in other forms. He always has a pas encore (not yet). The fundamental character of Dasein is a condition of already “Being-in-the-world”—of already being caught up in, involved with, or committed to other individuals and things. (shrink)

In this paper, I take up the question of “how fast does time flow?” This question is usually asked as a rejoinder to the view that time is irreducibly tensed, which is motivated by the fact that we experience the passage of time. I consider what the meaning of this question could be and provide a defence of the view that the passage of time is meaningless (due to its rate of passage being dimensionless), undercutting the motivation for a tensed (...) view of time. (shrink)

In this paper I present and evaluate van Inwagen’s famous Consequence Argument, as presented in An Essay on Free Will. The grounds for the incompatibility of freewill and determinism, as argued by van Inwagen, is dependent on our actions being logical consequences of events outside of our control. Particularly, his arguments depend upon, in one guise or another, the transference of the modal property of not being possibly rendered false through the logical consequence relation, i.e. the β-principle. I argue that, (...) due to the symmetric nature of determinism, van Inwagen is exposed to what I call “reversibility arguments” in the literature. Such arguments reverse the β-principle and start from our apparent control over our own actions to our control over the initial conditions. Since van Inwagen does not endorse a particular theory of laws or logical consequence, he is open to such counterarguments. The plausibility of such reversibility arguments depends on what would be called a Wittgensteinian conception of logical consequence. In the _Remarks on the Foundation of Mathematics_, one of Wittgenstein’s main concerns is the normativity of logical inference i.e. proof. Such concerns with normativity and rule-following are generally a feature of his later philosophy. In the _Remarks_ Wittgenstein resists a conception of logical deduction which places the source of normativity outside of human practice. (shrink)

This dissertation draws upon historical studies of scientific practice and contemporary issues in the metaphysics and epistemology of science to account for the nature of physical quantities. My dissertation applies this integrated HPS approach to dimensional analysis—a logic for quantitative physical equations which respects the distinct dimensions of quantities (e.g. mass, length, charge). Dimensional analysis and its historical development serve both as subjects of study and as a sources for solutions to contemporary problems. The dissertation consists primarily of three related (...) papers on: (1) the methodological and metaphysical foundations of dimensional analysis, (2) the use of dimensional analysis in determining physical symmetries, (3) the use of dimensional analysis in securing metrological extension. (shrink)

This study was carried out on the low-grade chromite, Gedarif state, Sudan, at Umm Saqata- Qala Elnahal to achieve full characterization for the ore via Microscopic studies for the polish section samples, X-ray diffraction analysis (XRD), X-ray Fluorescence Analysis (XRF), Scanning electron microscopic with Energy Dispersive X-ray Spectroscopy (SEM-EDX), and physical properties tests. Microscopic study revealed that the liberation size of chromite mineral is in the range (0.30-0.05) mm. also the X-ray diffraction, X-ray fluorescence and scanning electron microscope with the (...) Energy Dispersive X-ray analysis showed that main gangue of the ore is mineral silicates as Antigorite and contains 21.58-19.60% Cr2O3. The physical tests (saturated density and dry density) demonstrated that ore has low density in range 2.54-2.38 g/cm3 because it is low grade chromite ore, this can be attributed to the dominating mineral silicate (waste) which associated with chromite mineral. (shrink)

Our gums (gingiva) act as a significant barricade in guarding our teeth and their neighboring support structures. A tiny known fact is that gum disease is the foremost cause of tooth loss in grown persons. Healthy, strong, teeth are reliant on on healthy gums. The core culprit for gum problems is bacteria in dental plaque. The bacteria in plaque yield harmful toxins that generate an inflammatory process that happens in the gum tissue. If left for a sufficient period of time, (...) bacterial plaque causes hurt to our teeth as well as our gums. In this paper, we present a knowledge based system that help people with teeth and gums problems to diagnose their problems and get recommendation for the treatment. This expert system was designed and implemented using SL5 Object language for knowledge based system. (shrink)

This study was performed on disseminated low-grade chromite ore, Gedarif State, Umm Saqata-Qala Elnahal, to treatment the ore by Heavy media separation (HMS) with low intensity magnetic separation (LIMS) for course fraction size (-212+75) μm and selective flocculation for chromite slimes (-75) μm. The ore of the study area is low grade contains 21.5% Cr2O3 with the liberation size of chromite mineral in the range (0.30-0.05) mm. The main gangue of the ore is mineral silicates as the Antigorite mineral. The (...) ore was crushed, ground, and then classified to tow fraction size (-212+75) μm and slimes (-75) μm. Fractions size (-212+75) μm contained 25.58% Cr2O3 was treated by HMS via Bromofrom mixed with carbon tetrachloride flowed by low intensity magnetic separator. HMS with LIMS obtained the highest recovery 82.52% and grade 46.62% Cr2O3 for chromite concentrate with 2.54 Cr/Fe. The slimes (-75) μm contained 22.17% Cr2O3 was treated by selective flocculation method. Optimum grade 42.71% Cr2O3 and recovery 37.10% for chromite concentrate, were achieved at sodium silicate concentration 100 mg/l, starch concentration 45 mg/l, pH=9, and solid percentage 5%. (shrink)

High grade chromite ore has been decreased constantly due to the importance of chromium element in industrial uses such as metallurgical, chemical, and refractory industries. Therefore, beneficiation of low grade has been more significant .Response Surface Methodology (RSM) is combination of statistical and mathematical methods used for modeling and analyzing problems. In this study, the Central Composite Design (CCD) was applied by using Design-Expert (version 6.0.5) for modeling and optimizing the effect of operating variables on the performance of gravity separation (...) via pilot plant shaking table for chromite ore. Three operating variables were studied, namely feed rate, tilt angle, and flow rate during the tests. The sample under study is low grade chromite ore, containing (30.21%, Cr2O3). The mathematical model equations of ANOVA model revealed that the grade of concentrate is more sensetive for feed rate (g/min) compered to water flow rate (l/min).whereas , recovery of concentrate is more sensetive for tilt angle compered to water flow rate (l/min) and feed rate (g/min). Optimized responses for the beneficiation process were found at concentrate with 48.52% Cr2O3 in with 83.09% recovery and it was achieved at water flow rate 15.33 l/min, tilt angle 2.16 ≈ 2.00 degree, and feed rate of 195.38 g/min. (shrink)

In this paper an Artificial Neural Network (ANN) model was used to help cars dealers recognize the many characteristics of cars, including manufacturers, their location and classification of cars according to several categories including: Buying, Maint, Doors, Persons, Lug_boot, Safety, and Overall. ANN was used in forecasting car acceptability. The results showed that ANN model was able to predict the car acceptability with 99.12 %. The factor of Safety has the most influence on car acceptability evaluation. Comparative study method is (...) suitable for the evaluation of car acceptability forecasting, can also be extended to all other areas. (shrink)

A book review of _Phenomenological Approaches to Physics_ (2020) edited by H. A. Wiltsche and P. Berghofer.

This study aimed to identify the reality of digital transformation in the Palestinian Ministry of Interior and National Security from the point of view of workers in computer and information technology units. ) employees, and the study tool (the questionnaire) was distributed, and the comprehensive survey method was used, where (61) questionnaires were retrieved with a percentage of (87.1%), and they were unloaded and analyzed using the statistical packages SPSS. The study reached several results, including: The availability of dimensions of (...) digital transformation to a large extent in the Ministry of Interior, Security and National and its amount reached (77.5%). The average overall score for the senior management support dimension scored a large approval degree and a relative weight (78.2%), and The Dimension strategic directions it received a large approval degree and a relative weight (76.3%), The Dimension the technical infrastructure necessary for digital transformation achieved a large approval degree and a relative weight. (73.4%), The Dimension human resources, it scored a large approval degree and a relative weight (72.2%), The Dimension coordination, a large approval degree and a relative weight (82.7%), The Dimension data privacy and security, it scored a large approval degree and a relative weight (80.7%), The Dimension the organizational structure and job description, it received a high degree of approval and a relative weight of (79.3%).The study presented a set of recommendations, the most important of which are: the need for the ministry’s administration to provide a special budget to develop the quality of its electronic services as a lever for digital transformation, the need for the ministry’s administration to spend sufficient amounts on innovation in how to provide its services, for the ministry to have high-speed internet lines and its services available uninterrupted, the need to match the number of Employees in computer and information technology departments and units with the volume and quality of work to bridge the gap between the required performance and actual performance, that the ministry develop a clear methodology for exchanging data and information between the components of the ministry, work on providing information security elements for the uploaded data and files, that the ministry provide a clear and specific job description for the main tasks in Computer and information technology departments/units in the ministry. (shrink)

This study aimed to identify the extent of the application of Cyber Security at the Ministry of Interior and National Security from the point of view of workers in the computer and information technology units. 70 employees, and the study tool (questionnaire) was distributed, and the comprehensive survey method was used, as (61) questionnaires were retrieved at a rate of (87.1%), and they were unloaded and analyzed using the SPSS statistical package. The study reached several results, including: There was a (...) high degree of agreement on the degree of Cyber Security application, which amounted to (74.8%). With a relative weight of (74.8%), and The Dimension efforts to monitor threats, it received a high degree of approval and a relative weight of (73.4%). Privacy has a high degree of approval with a relative weight of (78.4%).The study presented a set of recommendations, the most important of which are: the need to pay attention to providing the Ministry of Interior and National Security with a budget in order to activate and improve the Cyber Security system, and the need for the Ministry of Interior and National Security to use a protection network capable of detecting all threats, and the cooperation of the Ministry of Interior and National Security with external institutions to limit penetration of network systems, In addition to the need to continuously strengthen and develop the laws and legislations of the Ministry of Interior in line with the development of Cyber Security, and to enhance the capabilities of the public beneficiaries of the ministry's electronic services to reduce security gaps in the field of Cyber Security. (shrink)

The study aimed to identify the impact of the internal factors of process re-engineering in achieving organizational justice on relief organizations operating in the southern governorates - Palestine. Analytical, and a questionnaire was used to collect information that contributes to achieving the objectives of the study, and the study population consisted of employees in relief organizations, and a stratified random sample was used to collect data from 60 relief institutions. The study showed that the general estimate of the internal factors (...) for process re-engineering amounted to 76.44%, and the results showed close ratios and values for the various study axes, and the relative weight of the strategic planning axis was 76.3%, the information technology axis 79.5%, and the work regulations and regulations axis 83.7%, and between the study The relative weight of organizational justice reached 82.2%. The results also showed that training and empowering employees in organizations contributes to achieving organizational justice. The study recommended the need to provide a budget for training and development, with the need to build clear foundations to motivate and encourage employees in organizations, and define clear criteria for distributing Services for the promotion of distributive justice procedures in organizations. (shrink)

The study aimed to identify the digital transformation in Non-Governmental Organizations in Palestine, and the study used the descriptive analytical approach, and a structured questionnaire was used to collect data that contribute to achieving the objectives of the study, and the study population consists of employees in Non-Governmental Organizations in the southern Palestinian governorates, and a random sample was used to collect Data where (183) applicable questionnaires were retrieved. The results of the study showed that the general assessment of digital (...) transformation reached (83.92%), and that the arrangement of areas of digital transformation is as follows: (infrastructure, organizational culture, human resources, leadership and administrative support, plans and strategies, material resources). The study presented a set of recommendations, the most important of which are: the necessity of providing a budget for training and development, attracting expertise and specialists in digital transformation to work in organizations, and providing the necessary software tools to build and manage the digital transformation process. (shrink)

The study aimed to identify the level of creativity among NGOs Organizations in Palestine. The study used the descriptive analytical approach. A structured questionnaire was used to collect data that contribute to achieving the objectives of the study. The study population consists of workers in civil organizations, and a random sample was used to collect data, as 222 applicable questionnaires were retrieved. The results of the study showed that the level of creativity was high with a relative weight of (78.07%). (...) The relative weight of the flexibility domain was (79.03%) in second rank, the relative weight of the fluency domain was (78.49%) in third rank, and the relative weight of the problem solving domain was (78.38%) in fourth rank. The relative weight of the field of organizational climate was (77.89%) in the fifth rank, the relative weight of the field of risk was (78.07%) in the sixth rank. The study presented a set of recommendations, the most important of which are: the need to build clear foundations to motivate and encourage workers in organizations, and to give the management of institutions full freedom for workers to make decisions. (shrink)

Abstract: In this work, polystyrene/waste tires composites were prepared using the melt-mixing method. The viscoelastic properties of PS and PS/composite have been evaluated and compared. These properties were studied using ARES-Rheometer under nitrogen atmosphere in parallel plate geometry with diameter 8 mm. The measurements are carried out over a wide range of temperatures ranged from 120°C to 220°C and frequencies from 100 to 0.1 radians per second. The dynamic and complex viscosity of the PS composites were studied and compared with (...) those of unfilled PS. The results showed that the frequency,  is shifted from 0.46 to 0.072 radians/s and the value of dynamic viscosity increases from 5.0104 to 1.3105 Pa.s by the addition of the rubber for PS. Zero-shear viscosity, 0 was found to be increased from is 9.5104 for PS/waste tire composite to 4.5104 for PS. The flow activation energy is calculated from 0 by using the rheometric software to be 1.063 105 and 1.46 105 J/mol.K for Ps and PS composite, respectively. (shrink)

Abstract— Waste Polyvinyl chloride-bitumen composites were prepared in the molten state by addition waste PVC pipes to commercial bitumen in different concentrations. The original material of the pure bitumen and bitumen composites are rheologically characterized. The viscoelastic properties such as shear compliance, torque and viscosity were measured and compared. These properties were studied using an ARES- Rheometer (Rheometric Scientific, Co.) equipment. The measurements were performed in the dynamic mode, plate-plate geometry of 25 mm diameter over the temperature range from –10 (...) to 60°C and angular frequency, varied from 102 to10-1 radian/s. The results are compared at reference temperatures10 and 60°C over a wide range of . The results evidence that the incorporation of the waste PVC into bitumen enhances the dynamic viscosity. The results evidence that the incorporation of the waste PVC into bitumen enhances the torque and the viscosity. So, the stability of the bitumen composites is more noticeable at 60°C. (shrink)

In this work, polystyrene/waste tires composites were prepared using the melt-mixing method.. The effect of the preparation conditions of the PS/waste tires composite is investigated in this work by using Gel permeation chromatography (GPC) technique. Stability at elevated temperatures were found to increase with the addition of waste tires to PS as confirmed by the results. GPC results indicate that the preparation conditions of the PS/waste tires composite has no effect on the Ps chains as indicated by GPC technique. The (...) signals of the GPC for unfilled and filled PS are similar. That evidences no thermo-mechanical chain degradation is taken place during the addition of the waste tires under the conditions of the melt-mixing process . (shrink)

Abstract: The dynamic viscoelastic properties of Polyvinylacetate with molecular weight 83000g/mol (PVA 83K ) were determined by using a Rheometer operated in the dynamic mode and 8 mm parallel plate over a wide range of temperature as a function of frequency. The measurements were performed successively in the parallel plate geometry using 8 mm plate instead of 25 mm. The glass plateau regime is clearly observed because we could measure PVA 83K sample successively under its glass temperature. The rheological properties (...) of polydisperse PVA 83K were completely studied. The storage and loss compliance and the relaxation spectrum are evaluated. (shrink)

Abstract— Polystyrene/waste tires composites were prepared in this study by incorporating shredded waste tires into polydisperse polystyrene in a melt-mixing method. The dynamic mechanical properties of PS and PS/composite have been evaluated and compared. These properties were studied using ARES-Rheometer under nitrogen atmosphere in parallel plate geometry with diameter 8 mm. The measurements are carried out over a wide range of temperatures ranged from 120°C to 220°C and frequencies from 100 to 0.1 radians per second. The shear creep stress J(t) (...) and loss factor were studied and compared with those of unfilled PS. The dynamic mechanical properties and stability at elevated temperatures were found to increase with the addition of waste tires to PS as confirmed by the results. From the results, the value of J(t) modulus for PS/waste tire is higher than this for the original material of PS. The incorporation of the rubber to the PS changes the value of J(t) at 0.001 second from 5.610-6 to 3.710-6 Pa-1 for PS and PS/waste tire, respectively and this difference increases with time. This confirmed that PS/waste tire composite exhibits higher stability at 180°C for a long time than the original unfilled PS. At frequency  = 6.7102 radians/s , the value of tan increases about 20% by the incorporation of the rubber filler, due to the increase in the G'' modulus particularly at low frequencies in the flow regime. (shrink)

Abstract: Polystyrene/waste tires composites were prepared in this study by incorporating small particles of waste tires into polydisperse commercial polystyrene (PS) in a melt-mixing method. The dynamic mechanical properties of PS and PS/composite were studied using ARES-Rheometer under nitrogen atmosphere in parallel plate geometry with diameter 8 mm. The measurements were carried out over a wide range of temperatures ranged from 120°C to 220°C and frequencies from 100 to 0.1 radians per second. The shear compliance of PS composite were studied (...) and compared with those of unfilled PS. The shear compliance were studied and evaluated. Where the values of J' at  = 0.06 radians/s are 110-4 and 5.310-5 Pa-1 for PS and PS composite, respectively At  = 0.1 radians/s the addition of the rubber alters the value of J'' from 1.610-4 to 8.410-5 Pa-1. That means the stability of PS is enhanced by the incorporation of the rubber. (shrink)

Waste polyethylene (PE) bags were reused in the modification of commercially available bitumen. The bitumen/PE blend was prepared by mixing homogenously commercial bitumen with waste PE in the molten state. The samples of bitumen blend and bitumen base were rheologically analyzied. The rheological properties such as complex modulus, shear compliance, torque and complex viscosity of bitumen and bitumen blend were studied using an ARES- Rheometer (Rheometric Scientific, Co.) in the dynamic mode, plate-plate geometry with diameter 8 mm. The measurements were (...) performed over a wide range of temperatures ranged from-10°C to 60°C and frequencies from 100 to 0.1 radians per second. The results evidence that the complex modulus, shear compliance, torque and viscosity are improved by the incorporation of the waste PE into bitumen. The flow activation energy for neat bitumen and bitumen-9%PE are calculated from 0 by using the rheometric software. (shrink)

Abstract: Waste polyvinylchloride (PVC) pipes were reused in the modification of commercially available bitumen. Waste PVC/ bitumen blends were prepared by melt-mixing method. Rheological characteristics of the neat bitumen and bitumen blends samples were investigated. The rheological properties were determined using an ARES- Rheometer (Rheometric Scientific, Co.) under nitrogen atmosphere in parallel plate geometry with diameter 25 mm. The measurements were performed over a wide range of temperatures ranged from -10°C to 60°C and frequencies from 100 to 0.1 radians per (...) second. Improvement in rheological properties. (shrink)

Abstract— Waste Polyvinyl chloride-bitumen composites were prepared in the molten state by addition waste PVC pipes to commercial bitumen in different concentrations. The original material of the pure bitumen and bitumen composites are rheologically characterized. The viscoelastic properties such as shear compliance, torque and viscosity were measured and compared. These properties were studied using an ARES- Rheometer (Rheometric Scientific, Co.) equipment. The measurements were performed in the dynamic mode, plate-plate geometry of 25 mm diameter over the temperature range from –10 (...) to 60°C and angular frequency, varied from 102 to10-1 radian/s. The results are compared at reference temperatures10 and 60°C over a wide range of . The results evidence that the incorporation of the waste PVC into bitumen enhances the dynamic mechanical moduli and the viscosity. The moduli were found to rise with increasing the waste PVC content. The stability of the bitumen blends is more noticeable at 60°C as confirmed by the results. (shrink)

The dynamic viscoelastic properties of Polyvinylacetate with molecular weight 83000g/mol (PVA 83K) were determined by using a Rheometer operated in the dynamic mode and 8 mm parallel plate over a wide range of temperature as a function of frequency. The measurements were performed successively in the parallel plate geometry using 8 mm plate instead of 25 mm. The glass plateau regime is clearly observed because we could measure PVA 83K sample successively under its glass temperature. The rheological properties of polydisperse (...) PVA 83K were completely studied and the experimental data were analyzed using the Winter model. (shrink)

Abstract: In this work, polystyrene/waste tires composites were prepared by incorporating of waste tires into polydisperse commercial polystyrene in a melt-mixing method. The rheological characterization of PS and PS/composite have been studied and compared. These properties were studied using ARES-Rheometer under nitrogen atmosphere in parallel plate geometry with diameter 8 mm. The measurements are carried out over a wide range of temperatures ranged from 120°C to 220°C and frequencies from 100 to 0.1 radians per second. The complex modulus (G*) were (...) evaluated and compared with those of unfilled PS. The dynamic mechanical properties and stability at elevated temperatures were found to increase with the addition of waste tires to PS as confirmed by the results. The results showed that the value of G* at  = 1.0 radian/s is 1.8104 and 4.4104 Pa for PS and PS/waste tires, respectively. This difference rises at low frequencies-branch to be the value of G* at  = 0.06 radian/s is 8.8102 and 7.8103 Pa for PS and PS/waste tires, respectively. Generally G* increases by the addition of rubber as filler for PS . (shrink)

The study aimed to identify the level of institutional competence in Non-Governmental Organizations in Palestine. The study used the descriptive analytical approach. A structured questionnaire was used to collect data that contribute to achieving the objectives of the study. The study population consists of employees in Non-Governmental Organizations in the southern Palestinian governorates, and a random sample was used. For data collection, (183) applicable questionnaires were retrieved. The results of the study showed that the general assessment of the level of (...) institutional efficiency was high with a relative weight of (91.85%). The results also showed that there were statistically significant differences in achieving institutional efficiency according to the variables (gender, number of years of service), while it was found that there were no statistically significant differences in achieving institutional efficiency. Depending on the variables (educational qualification, age group). The study presented a set of recommendations, the most important of which are: the necessity of providing a budget for training and development, and attracting expertise and specialists in digital transformation to work in organizations. (shrink)

The study aimed to identify the impact of leadership style in achieving organizational justice on relief organizations operating in the southern governorates - Palestine, and the most important hypotheses of the study were: that there is a positive correlation between leadership style and achieving organizational justice. Which contribute to achieving the objectives of the study, and the study population consisted of Employees in relief organizations, and a stratified random sample was used to collect data from 60 relief institutions. The study (...) showed that the relative weight of the leadership axis was 78.65%, and the study showed that the relative weight of organizational justice was 82.2%. The results also showed a correlation between leadership style and organizational justice, in addition to the prevailing leadership style, which contributes to training and empowering Employees. The study recommended the need to provide effective leadership, with the need to build clear foundations to motivate and encourage Employees in organizations, and to define clear criteria for the distribution of services in order to enhance the procedures of distributive justice in organizations, as well as work to integrate sub-tasks into one task, and give the institutions management full freedom for Employees to make decisions. (shrink)

The study aimed to identify the level of organizational justice in relief organizations operating in the southern governorates - Palestine. The study used the descriptive analytical method، and the questionnaire was used to collect information that contributes to achieving the objectives of the study، and the study population consisted of workers in relief organizations، and a stratified random sample was used to collect data from 60 relief institutions. The study showed that the relative weight of organizational justice was 82.2%. Where (...) the dimension of distributive fairness reached 85.94% and after procedures fairness 78.02، and the study recommended the need to build clear foundations to motivate and encourage workers in organizations، and define clear criteria for distributing services in order to enhance distributive justice procedures in organizations. (shrink)

Abstract: The integration of Artificial Intelligence (AI) into educational technology has revolutionized learning through Intelligent Tutoring Systems (ITS). These systems harness AI to deliver personalized, adaptive instruction that caters to individual student needs, thereby enhancing learning outcomes and engagement. This paper explores the evolution and impact of ITS, highlighting key AI technologies such as machine learning, natural language processing, and adaptive algorithms that underpin their functionality. By examining various case studies and applications, the paper illustrates how ITS have transformed traditional (...) educational practices and identifies the challenges and limitations associated with their implementation, including data privacy concerns and system biases. The discussion also extends to future directions in ITS development, emphasizing emerging trends and potential advancements. Ultimately, this paper aims to provide a comprehensive understanding of how ITS leverage AI to enhance educational experiences and propose pathways for future research in this dynamic field. (shrink)

The study aimed to identify the reality of management and development of human resources among graduates registered with the Palestinian Ministry of Labor. The study used the descriptive analytical approach. A structured questionnaire was used to collect data that contribute to achieving the objectives of the study. The study population consists of university graduates in the southern Palestinian governorates who are registered with the Ministry of Labor. Palestinian labor force, and a random sample was used to collect data, as the (...) sample reached (388) graduates who responded to filling out the questionnaire. The results of the study showed that the axis of human resources management and development was moderately developed. The results also showed that there were no statistically significant differences in the development of human resources according to the personal and organizational data of graduates registered in the Ministry of Labor in the southern governorates in the variables (gender, educational qualification, and governorate). While the results showed that there are statistically significant differences in the development of human resources according to the personal and organizational data of graduates registered in the Ministry of Labor in the southern governorates in the age group variable, where the differences were for age groups 40 years and over, and in the work status variable, where the differences were in favor of graduates who do not work. The study presented a set of recommendations, the most important of which are: the need to use innovative methods in promoting the issue of graduates to stakeholders from various institutions, in addition to the need to adopt specific prices for work in a way that is appropriate to the general economic situation, and the need to provide new and innovative services to workers, and to enhance communication with graduates through the implementation of meetings Periodicals and workshops. (shrink)

Abstract: The incorporation of Artificial Intelligence (AI) into educational technology has dramatically transformed learning through Intelligent Tutoring Systems (ITS). These systems utilize AI to offer personalized, adaptive instruction tailored to each student's needs, thereby improving learning outcomes and engagement. This paper examines the development and impact of ITS, focusing on AI technologies such as machine learning, natural language processing, and adaptive algorithms that drive their functionality. Through various case studies and applications, it illustrates how ITS have revolutionized traditional educational methods (...) and addresses the challenges and limitations, including data privacy and system biases. The discussion also covers future directions in ITS development, highlighting emerging trends and potential advancements. The goal is to provide a thorough understanding of how ITS use AI to enhance educational experiences and suggest avenues for future research in this evolving field. (shrink)

The study aimed to identify the availability of governance requirements in NGOs in the southern Palestinian governorates. The study used the descriptive analytical approach. A structured questionnaire was used to collect data that contribute to the requirements of the study objectives. The study population consists of employees in NGOs in the southern Palestinian governorates. The use of a random sample to collect data from the study population, where the sample amounted to (184) individuals, and the results of the study showed (...) that the general assessment of the governance axis was also high with a relative weight of (92.94%). The results also showed that there were statistically significant differences in the level of achieving governance according to the variables (Academic Qualification, Age Group, Job Title, Years of Service, and Governorate). And there are no statistically significant differences in the level of governance achievement according to the variable (Gender). The study presented a set of recommendations, the most important of which are: the need for the organization to use the principles and requirements of governance in its various activities, and for the organizations to disclose their administrative activities to employees in order to enhance the principle of transparency. (shrink)

This study aimed to identify the digital transformation and its impact on the application of Cyber Security in the Palestinian Ministry of Interior and National Security. The study used the analytical descriptive approach. The study tool (questionnaire), and the comprehensive survey method was used, where (61) questionnaires were retrieved (87.1%), and they were unloaded and analyzed using the SPSS statistical package. The study found several results, including that there is a statistically significant correlation between all dimensions of Digital transformation and (...) the application of Cyber Security in the Ministry of Interior and National Security. And that there is an impact of Digital transformation on the application of security in the Ministry of Interior and National Security in the governorates of Gaza, and the impact coefficient was (0.897). It was found that the dimensions affecting the dependent variable of Cyber Security are dimensions (organizational structure, job description, data privacy and security, technical infrastructure required for digital transformation), as these dimensions affect (89.7%) of the variation in the application of Cyber Security. The study presented a set of recommendations, the most important of which are: The need for the Ministry's administration to provide a special budget to develop the quality of its electronic services as a lever for digital transformation. And the need for the number of workers in computer and information technology departments and units to be commensurate with the volume and quality of work to bridge the gap between the required performance and the actual performance. The ministry should set a clear methodology for exchanging data and information between the components of the ministry. And the need for the Ministry of Interior and National Security to use a protection network capable of detecting all threats. (shrink)

The study aimed to identify the reality of intellectual capital among NGOs Organizations in Palestine. The study used the descriptive analytical approach. A structured questionnaire was used to collect data that contribute to achieving the objectives of the study. The study population consists of workers in NGOs Organizations. A random sample was used to collect data. 222 applicable questionnaires were retrieved. The results of the study showed that the general estimate for intellectual capital amounted to 79.84%, and the results showed (...) similar ratios and values for the various axes of the study. Relational capital has a relative weight (81.05%), Structural capital has a relative weight (79.24%) and Human capital has a relative weight (79.22%). The study presented a set of recommendations, the most important of which are: the need to provide a budget for training and development, with the need to build clear foundations to motivate and encourage employees in organizations, and to give the management of institutions full freedom for employees to make decisions. (shrink)

The study aimed to identify the reality of the use of artificial intelligence applications as a modern trend among training institutions in the southern Palestinian governorates. The study used the descriptive analytical method. The southern Palestinian governorates, and the random sample was used to collect data, as (90) applicable questionnaires were retrieved. The results of the study showed that the general estimate of artificial intelligence applications reached (83.63%), and that the order of areas of artificial intelligence applications is as follows (...) (Training And Development, System Capacity, User Behavior, Smart Agent, News Availability), and the results also showed that there were no statistically significant differences. In the use of artificial intelligence applications according to the gender variable, there are statistically significant differences in the use of artificial intelligence applications according to the variables (educational qualification, age group, number of years of service, governorate). The study presented a set of recommendations, the most important of which are: the need to attract experts and specialists to work in training institutions in order to develop applicable artificial intelligence applications, as well as the need for centers to develop their training systems in line with modern technology. (shrink)

The study aimed to identify the level of business intelligence in its dimensions (data reliability, information technology, competitive intelligence, analytical ability, business management performance, immediate analytical processing) in NGOs in the southern Palestinian governorates. The study used the analytical descriptive approach, and a structured questionnaire was used to collect data. Which contribute to the development of the objectives of the study, and the study population consists of employees in Non-Governmental Organizations in the southern Palestinian governorates, and a random sample was (...) used to collect data from the study community, as the sample reached (184) individuals, and the results of the study showed that the general estimate of business intelligence came with a high level and weight Relative (90.49%), and the arrangement of business intelligence dimensions was as follows: (data reliability, information technology, competitive intelligence, analytical ability, business management performance, and instant analytical processing). The study presented a set of recommendations, the most important of which are: the need for the organization to use modern technological systems to analyze and make its own reports, to work on employing the use of business intelligence techniques in detecting new competitors, and predicting their strategies. (shrink)

:The study aimed to identify the level of enhancing the competitive advantage of training institutions in Palestine. The study used the descriptive analytical approach. A structured questionnaire was used to collect data that contribute to achieving the objectives of the study. The study population consists of workers in training institutions operating in the southern Palestinian governorates. The random sample for data collection, where (90) applicable questionnaires were retrieved. The results of the study showed that the general estimate for the competitive (...) advantage axis came with a high degree and a relative weight (90.67%). The results also showed that there were no statistically significant differences in enhancing the competitive advantage according to the variables (gender, governorate). As well as the existence of statistically significant differences in enhancing the competitive advantage according to the variables (Educational Qualification, Age Group, Number Of Years of Service). The study presented a set of recommendations, the most important of which are: the need for centers to develop their training systems in line with modern technology, in addition to the need for centers to target new areas in their service by opening other branches in diffe rent geographical locations. (shrink)

In the historical process, the importance of doing interdisciplinary work has been accepted in all social sciences and has become an undeniable phenomenon. The history of Islamic thought can undoubtedly be seen as a very fertile field for such a study. It is because many different disciplines start the historical formation process from the same point. In other words, they are historically constructed on a common narrative. In this respect, interdisciplinary reading can be most functional in the context of usûl-ı (...) fiqh, kalam, philosophy and mysticism, which can be expressed as the pillars of Islamic thought. In this framework, we have identified Ahmed Mahmûd Subhi, the Egyptian thinker and academician, as a prototype in our study. As a matter of fact, Subhi has an approach that stands out with a holistic perception of Islamic thought and has produced texts that can build the idea in question. We can build Subhî's way of thinking with a tradition he abides by or in a teacher-student relationship. What is needed for this is to take an in-depth look at his life and works. Such a study will serve as the key to our understanding of Subhi's scientific method. The ultimate aim of this study is to emphasize the importance of taking different disciplines as a basis in order to make healthy and correct interpretations of Islamic thought. This issue, which we have expressed as a claim, will be embodied by Subhî's ideas in his texts and turned into a concrete structure. (shrink)