Abdul-Wali Ajlouni

Dwam Medical

Counterfeit medicines are one of the major challenges facing pharmaceutical supply chains and patient safety and are a serious problem in countries around the world. These drugs represent a major threat to the patient’s life, to the real drug manufacturers, and to the country’s image. The problem of substandard/ counterfeit/counterfeit/counterfeit...

Radioiodine (I 131) therapy is a clinically established method for hyperthyroidism treatment. The most suitable dose for successful treatment is still controversial since it is affected by several factors. Thus, there are two techniques for proper dose adjustment; Fixed and calculated. This study aims to evaluate the response difference of hyperthy...

This study aims to introduce national diagnostic reference levels )NDRLs) for adult hybrid SPECT/CT in nuclear medicine (NM) departments in the Kingdom of Saudi Arabia. The Adminis-tered Activity (AA) of radiopharmaceuticals, volume-weighted computed tomography dose index (CTDIvol) and dose length product (DLP) for ten hybrid SPECT/CT examinations...

ثقافة الأمن (security) وثقافة الأمان (safety) في المؤسسة التعليمية والبحثية هما مرآتان تعكسان ممارسات ومواقف وسلوك العاملين فيها حيال الأمن والأمان. وقد كانت حوادث الكيماويات خصوصاً والمواد الخطرة بشكل عام، ضمن المؤسسات التعليمية والبحثية، نتاجاً لضعف ثقافتي الأمن و الأمان فيها، والتي يعتقد بأنها السبب الجذري للحوادث. وقد زادت الحوادث الكارثية في ا...

Lead aprons are used in medical applications as a traditional shielding material, but this use was faced by many health problems including toxicity, heavyweight, and cracks, this motivated researchers to develop new shielding materials, to overcome these health problems depending on some promising materials, i.e., nanomaterials and polymers, which...

When electrons are suddenly decelerated upon collision with the metal target, electromagnetic radiation is produced such as X-Rays; these X-rays are commonly called bremsstrahlung or "braking radiation". Using the theory of the quantization of nonconservative systems using fractional calculus, where the canonical quantization of a system of free pa...

A series of Co0.65Zn0.35LaxFe2-xO4 was prepared by flash method, where x = 0, 0.02, 0.04, 0.06, 0.08, and 0.1 and was annealed at 800 °C for 2 hrs.The purity of phase structure was confirmed by x-ray diffraction. The dielectric properties were measured and were found that both dielectric constants, ε ′, and ε″, drastically decay in the low-frequenc...

Green syntheses of metallic nanoparticles using plant extracts as effective sources of reductants and stabilizers have attracted decent popularity due to their non-toxicity, environmental friendliness and rapid nature. The current study demonstrates the ecofriendly, facile and inexpensive synthesis of silver nanoparticles (AP-AgNPs) using the extra...

The Corona pandemic showed a real weakness in the role of education and scientific research related to hazardous materials in all countries of the world; this type of education and scientific research appeared unable to protect itself and even became a threat to the nation that provides it with a safe place in which to practice its activities. This...

The authors investigate the effect of Al on the structural, elastic, and electrical properties of a Ni nano ferrite. Six samples of NiAlxFe2-xO4 (where x= 0.00, 0.20, 0.40, 0.60, 0.80, and 1.00) were synthesized using flash auto combustion. As shown in XRD patterns, the lattice appears as a Fd-3m space group, a single-phase spinel structure with av...

Many devices and equipment include many semiconductor materials, and they are the basis of modern electronics, which includes communication devices such as transmitters and receivers for radio, television, computers, telephones of various kinds, and tools that work within satellite communications devices, space communication, and other devices, and...

Nanotechnology and Ionizing Radiation are playing vital role in our life and for future generations .. Don’t miss it.. this Wednesday.. https://lnkd.in/dTyZigbf

Background: To date in Saudi Arabia, a limited number of studies conducted to assess radiation doses received by pediatrics in computed tomography (CT) brain procedure. National diagnostic reference levels (NDRL) have been established for adults, but neither NDRL’s nor Local diagnostic reference levels (LDRL) have been established for pediatric pat...

PVA/PEG/EY samples were irradiated using of 50 KGy, gamma radiation dose. To investigate the effects of irradiation on the optical properties of the blend, UV-vis spectroscopy is used to study 6 samples of the blend, with different PEG content, 0, 1, 3, 5, 10, 15 percent, before and after irradiation. Radiation effects manifest itself as many chang...

The Ni-Al ferrite nanoparticles are synthesized by the flash auto-combustion method, and PANI is synthesized by the situ-chemical oxidative polymerization method. NiAl-ferrite/PANI/ x (PANI) Nanocomposite Films (x = 0.6 and 0.8) were prepared using a solution casting process. The X-ray results of the NiAlxFe2-xO4/PANI composite manifest that the Ni...

The effect of high-dose gamma irradiation on the minority charge carrier lifetime in p-type and n-type single-crystal silicon wafers has been studied using the “Quasi-Static Technique,” Sinton WCT-120. Full computerized measurements are set-up on the lifetime of the minority charge carriers τ for many commercial wafers before/after exposure to gamm...

Background:To date in Saudi Arabia, a limited number of studies conducted to assess radiation doses received by pediatrics in computed tomography (CT) brain procedure. National diagnostic reference levels (NDRL) have been established for adults, but neither NDRL’s nor Local diagnostic reference levels (LDRL) have been established for pediatric pati...

Peter Debye developed method for estimating the phonon contribution to the specific heat (heat capacity) in a solid, known as the Debye model in thermodynamics and solid-state physics. This model correctly explains the low temperature dependence of the heat capacity, which is proportional to T 3. It also recovers the Dulong-Petit law at high temper...

Physical processes involving nuclear fission, nuclear fusion, and neutron activation may result in the artificial generation of radionuclides. Neutron-induced nuclear fission is the most common source of intentionally generated radionuclides. Deposition, movement, and absorption of radioactivity by living organisms are all determined by the chemica...

Expanded use of nuclear energy offers an immense potential to meet important development needs, to satisfy energy demands and to mitigate the threat of climate change, which are the two main greatest challenges that faces human. Comparing with other industries, nuclear energy records manifests the fact that it is, absolutely, the safest industry. I...

The COVID-19 global pandemic has exposed weaknesses in health systems, global trade, economics, ethics and even our individual ideals of safety and security, necessitating a resolute and effective view of biosecurity as an important working tool for strengthening global health security. The term "biosecurity" has been applied broadly to a variety o...

PVA/PEG-EY blend structures are synthesized with PEG concentrations of 0, 1, 3, 5, 10, 15 and 20 wt% using casting method. The electrical and dielectric properties of the blend samples were studied with frequency in range (0.1 Hz to 20 MHz), via impedance spectroscopy. The Raman spectroscopy characterized and distinguish the structure of the prepar...

In this work, NiAl-ferrite/PANI/x (PANI) Nano composite Films (x = 0.2, 0.4, 0.6 and 0.8) were prepared using a solution casting process. Films were synthesized to achieve a good magnetic property of polymer and add more conductive properties to NiAlxFe2-xO4. The NiAlxFe2-xO4 nanoparticles are synthesized by flash auto combustion method, and PANI i...

Experience proves that nuclear security culture is crucial to effectively securing radioactive and nuclear materials from external and internal adversaries. There are some approaches to assess the effectiveness of nuclear security culture in a certain organization, such as conducting surveys, interviews and onsite observations. This paper introduce...

This work reports the effect of Al substitution in Ni ferrite on the structural and electrical resistivity of NiAlxFe2-xO4 (where, x= 0.00, 0.20, 0.40, 0.60, 0.80, and 1.00) nanoparticles synthesized by the flash auto combustion method. The XRD results show the presence of single-phase spinel structure. The average particle size estimated using Deb...

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The Corona pandemic showed a real weakness in the role of scientific research in all countries of the world, and scientific research appeared unable to protect itself, and even became a threat to the nation that provides it with a safe place in which to practice its activities. Whereas biological materials are an important part of our life,

Nuclear and radioactive materials provide a great benefit to humankind by producing enormous amounts of energy to meet important development needs and mitigate the threat of climate change, in addition to using them in the basic areas of life in medicine, industry, agriculture, research and education where they are used in safe environments and wit...

The intentional dispersion of chemical toxic pollutants in the environment causing releases of hazardous or toxic materials, whether it is in specific quantities transferred to the place of dispersion, or from industrial facilities such as petrochemical plants, oil refineries, natural gas processing plants, oil and gas transportation pipelines, che...

A solution casting process has been used to produce PAV/PEG/EY blend polymer composite films with different PEG concentrations. The structure and morphological of PAV/PEG/EY blend composite film have been characterized by XRD, TGA, FT-IR, TEM,SEM, EDAX and the UV–vis spectra were used to investigate the optical properties. The absorption spectra sh...

Background: Herbal melanin (HM) is a dark pigment extracted from the seed coat of Nigella sativa L. and known to exert biological effects via toll-like receptor 4 (TLR4). Recently, TLR4 was described as involved in natural programmed cell death (apoptosis). Tumor and embryonic cells are used as in vitro cellular models for drug and anti-cancer age...

Application of nanoparticles in drug delivery has become an emerging phenomenon. This is typically achieved either via custom made nanoparticles or through the functionalization of pre-synthesized nanoparticles with the pharmaceutically active ingredients. In this study, pregabalin that is the active pharmaceutical ingredient of commercially availa...

This study aimed to use radiochemical procedures to determine the Uranium Concentrations in Environmental Samples in Northeast Saudi Arabia and to estimate radiotoxicity of these concentrations. The chosen samples included 20 soil samples and 20 plant samples collected from the study area. Radiochemical well managed separation procedures, and p...

Amphetamine-type stimulants are among the most prevalent and widespread commonly abused drugs. Amphetamine and its derivatives were detected in aquatic environment. This study aimed to demonstrate experimentally the ability of γ-irradiation combined with persulfate anions (S2O82–) to degrade and mineralize the amphetamine in aqueous solution. An in...

The dispersion of chemical toxic pollutants in the environment related to accidental releases of hazardous or toxic materials escaping from industrial facilities such as oil refineries, petrochemical plants, natural gas processing plants, oil and gas transportation pipelines, chemical plants, and many other industrial activities in the event of a s...

A nuclear power program is a major activity requiring careful planning, preparation and investment in time, money and human resources, needs a stable political, economic and social environments. Any malicious act will endanger the public, and impact the international nuclear community. Necessity of enhancing control and security of nuclear and rad...

تعتبر الأدلة الجنائية النووية (Nuclear Forensics) والمنشأ النووي (Nuclear Attribution) أدوات ذات أهمية متزايدة في المعركة ضد الاتجار غير المشروع في المواد النووية والإشعاعية. حيث تستخدم العديد من المدخلات، تشمل نتائج تحاليل الأدلة الجنائية النووية للعينات، وفهم التأثيرات الكيميائية الإشعاعية، وفهم التأثيرات البيئية، ومعرفة طرق إنتاج مواد نووية خاصة...

Attend to life-threatening injuries first Radiation accidents can happen Serious radiological consequences are rare but they can occur Stochastic effects Severe injuries Death Therefore, emergency response plans are required Earlier skin decontamination decreases degree of beta burns, lowers risk of internal contamination, reduces chance of furthe...

تقنية النانو هي واحدة من أحدث وأسرع المجالات نموا في العلوم والهندسة. ظهر هذا الموضوع من التقارب بين مجالات الالكترونيات والفيزياء والكيمياء والبيولوجيا وعلوم المواد لخلق نظام وظيفي جديد ذي أبعاد بالمقياس النانوي مما يجعل تطور هذا العلوم والتقنية النانومترية محكوما بطبيعة مشتركة، ولا يمكن للتقدم السريع في هذا المجال أن يزدهر إلا في بيئة تعاونية يشت...

Uses of nuclear and radioactive materials in peaceful applications in energy production, medicine, research and industry, to improve the daily lives of individuals internationally makes these materials on the move and in demand. On the other hand, the possible risk of using in terrorist purposes, by it falling into the wrong hands is a real and gro...

تستخدم المواد النووية والمشعة في التطبيقات السلمية في إنتاج الطاقة ، وفي الطب والبحوث و الصناعة والتعليم والزراعة، من أجل تحسين الحياة اليومية للأفراد في كافة أقطار العالم مما يجعل هذه المواد على مستو عال من الاهمية والطلب المتزايد عليها. من ناحية أخرى، فإن المخاطر المحتملة لاستخدام هذه المواد سواء نتيجة لوقوع حوادث نتيجة سوء الاستخدام او بسبب استخ...

Illegal movements of nuclear and radioactive materials, for terrorist, political or illegal profit, within and between States continue to occur, presenting health and safety threats to the personnel involved as well as to the general public. To guarantee conducting these movements in a safe and secure manner, they should be subject to extraordinary...

The present study introduces some data regarding Radiation Doses Due to Natural Radioactivity measured the investigations we have already carried out in Selected Areas in Southern Part of Jordan. The investigated area, which is 270 Km long, includes three governorates in Jordan: Tafila, Ma'an, and Aqaba. These data emphasis on new findings of diffe...

توفر المواد النووية والمشعة فائدة كبيرة للبشرية من خلال إنتاجها كميات هائلة من الطاقة يمكنها تلبية احتياجات التنمية المهمة من خلال تلبية الطلب على الطاقة والتخفيف من خطر تغير المناخ وهما من أكبر التحديات التي تواجه العالم في القرن الحادي و العشرين وهناك فرص كبيرة للتوسع في استخدام الطاقة النووية في العديد من الدول العربية التي تختار الطاقة النووية...

صاحبت مشكلةُ النفايات الصناعية الأنشطةَ الصناعية منذ انطلاق الثورة الصناعية. ان التزايد المستمر في التصنيع (industrialization)، والتحضر (urbanization) والنمو السكاني (population growth) يؤدي إلى إنتاج كميات هائلة من النفايات الصناعية التي قد تسبب مخاطرَ صحية وتدهوراً في البيئة. من ناحية أخرى، تزداد الرغبة في الحصول على بيئة صحية، الأمر الذي يؤدي إل...

Gamma Radiation measurements conducted in Al Hammah hot springs, Jordan are introduced in this paper. These data represent new result of high-radiation dose equivalents found in part of the country measured for the first time. The radiation doses, attributable to terrestrial gamma radiation, were measured using a portable Geiger-Muller counter and...

The present study introduces records of radiation doses due to Natural Radioactivity measured in the investigations we have already carried out in various natural curative resources in Jordan, major of them include mineral and hot springs and the salt water and the volcanic mud of the Dead Sea. The investigated spots, in this study and other relate...

The present study introduces measurements of natural radiation doses due to gamma radio-nuclides in the Dead Sea, Jordan. This exploration implemented in the famous natural curative resource in Jordan, the Dead Sea. Our measurements show that this region has a proper level of external radiation due to gamma radionuclides, it lies within the normal...

The present study introduces records of radiation doses due to natural radioactivity measured in the investigations we have already carried out in various natural curative resources in Jordan, major of them include mineral and hot springs and the salt water and the volcanic mud of the Dead Sea. The investigated spots, in this study and other relate...

One of the technologically most important interactions of neutrons with matter is their loss of energy (“slowing down”) by a series of elastic collisions. These can be treated by the methods of classical mechanics, assuming the interacting particles as perfectly elastic spheres. The energy loss is an important subject, and is discussed in several b...

Problem statement: Radiation dosimetry features depend on semi-empirical formulas that lack a strong mathematical framework. This is due to the fact that the microscopic radiation interaction with matter includes energy losses that have never been described properly in quantum mechanics, which deals with conserved energy systems. Approach: Using th...

By using fractional calculus in physical problems it is possible to construct a complete mechanical description of nonconservative systems, including Lagrangian and Hamiltonian mechanics, canonical transformations, Hamilton-Jacobi equation, and quantum mechanics. In this paper, some the main features of the fractional-calculus tools in studying non...

Tafila district of Jordan is unique in the presence of phosphate mines and hot spa which are the major sources of natural radioactivity. Natural radionuclides transfer from soil to vegetables grown in the region, and become a part of people's food. In this study, 16 soil and vegetable samples from Tafila district were collected from eight locations...

In this study, measurements of the indoor radon concentration level using solid state nuclear track detectors inside dwellings were performed in the fall 2008. Fifty two detectors (type CR-39) were distributed in four sites in Tafila district, Jordan. The study sites were located in an area that has the most important phosphate mines and hot spa sp...

According to DAB hypothesis, fission products behaviors in different ecosystems could be interpreted, and actual field data, including minor health effects, are explained in a very wide coincidence. DAB hypothesis represents a tool for interpreting the reduced radiological impact in the environment, reduced health effects of FP and consequently to...

The scope of this paper is to present a brief study related to the investigations we have already made at three districts of Tafila province, which is located in the south part of Jordan and where the most important hot spa and phosphate mines are located. The main concern in these investigations is to measure the indoor radon concentration levels...

Most advanced methods of classical mechanics deal only with conservative systems, although all natural processes in the physical world are nonconservative. Classically or quantum-mechanically treated, macroscopically or microscopically viewed, the physical world shows different kinds of dissipation and irreversibility, ignored in analytical techniq...

Sequel to the work on the quantization of nonconservative systems using fractional calculus and quantization of a system with Brownian motion, which aims to consider the dissipation effects in quantum-mechanical description of microscale systems. The canonical quantization of a system represented classically by one-dimensional Fick's law, and the d...

This paper briefly reports some data from investigations carried out in the Afra hot springs, 160 km south of Amman, Jordan. These data emphasise the new findings of high-radiation dose equivalents, mainly to identify the potential and known impacts of exposure on public health in High Levels of Natural Radiation Areas (HLNRAs) of this region, and...

After a peer review of data about nuclear fission products, we can see easily that, no clear chemical species, chemical compounds, or chemical processes were available after actual releases of nuclear Fission Products (FP) during planned releases, accidents, or in nuclear detonations. The models based on these ordinary reactions and species could n...

In this paper, the author explores, theoretically, an important future application of nanomaterials in conjunction with radiation effects, particularly the potential use of nanoparticles in radiotherapy. He introduces a strategy for the use nanoparticles of some elements like Au, Ir, Pt, Sm, Cd, and Eu in radiotherapy. These nanoparticles are essen...

A high natural radiation zone was investigated for the first time in Afra hot springs of Jordan. The radiation levels were measured using a portable Geiger-Muller counter and an Na(Tl) detector. The measured absorbed dose rates in air ranged from 10 to 1800 nGy h−1, suggesting that the concentration of natural radioactive materials is very high com...

Problem statement: The dispersion of radioactive materials in the environment related to escaping of noble gases, halogens and aerosols of non-volatile radioactive materials, from the reactor containment during normal operations, or in the event of a sever reactor accident. Approach: radionuclide dispersion in the environment is demonstrated by mat...

The movement of radionuclides from its source, inside reactor containment, and in the environment has been studied with the principal objective of tracing the routes by which they accumulate in the food chain and become available for human consumption. A large number of studies and models were established to explain the fission products behavior wi...

The behaviors of fission products is studied in this study with the principal objective of making a comparison between Deep Atomic Binding (DAB) Approach and other models used to interpret the health effects of fission products on human body. Large numbers of fatalities, malignancies, thyroid cancer, born (genic) defects were predicted as health ef...

During fission process, the fission atom destroys because of the large energy released during the process which occurs via three stages and the electrons binding energy difference between the initial and the final states. Because of electron inertia, the newborn atoms are highly ionized, 10-12 electrons associated with each nucleus, called Highly I...

In this study fractional derivatives have been used to study a nonconservative system: free particle in a finite potential well, containing a dissipative medium. The Lagrangian and other classical functions have been introduced to take into account nonconservative effects. The canonical quantization of the system is carried out according to the Dir...

The behaviors of fission products is studied in this study with the principal objective of making a comparison between Deep Atomic Binding (DAB) Approach and other models used to interpret the health effects of fission products on human body. Large numbers of fatalities, malignancies, thyroid cancer, born (genic) defects were predicted as health ef...

A small post-accelerator has been used to measure the charge-state fractions of 0.125-0.50 MeV/amu He ions backscattered from silver films. The kinematics behavior of the backscattered ions is given by the well-known Rutherford Backscattering Spectrometry (RBS) Technique. In order to determine the film thickness at which the equilibrium film charge...

The canonical quantization of a system of free particle in a bounded volume in space, particle in a box, containing a dissipative medium, is carried out according to the Dirac method. A suitable Schrodinger equation is set up and solved for the Lagrangian representing this system. The viscous forces effects and hence the dissipation are represented...

Following our work on the quantization of nonconservative systems using fractional calculus, the canonical quantization of a system with Brownian motion is carried out according to the Dirac method. A suitable Lagrangian corresponding to the Langevin equation is set up. Further, a Hamiltonian is constructed and is transformed to Schrödinger's equat...

Former studies assumed that, after fission process occurs, the highly ionized new born atoms (20-22 positive charge), ionize the media in which they pass through before becoming stable atoms in a manner similar to 4-MeV ?-particles. Via ordinary chemical reactions with the surroundings, each stable atom has a probability to form chemical compound....

A large number of studies and models were established to explain the fission products (FP) behavior within terrestrial and water ecosystems, but a number of behaviors were non understandable, which always attributed to unknown reasons. According to DAB hypothesis, almost all fission products behaviors in terrestrial and water ecosystems could be in...

According to models used to predict health effects of fission products enter the human body, a large number of fatalities, malignancies, thyroid cancer, born (genetic) defects,...etc.. But the actual data after Chernobyl and TMI accidents, and nuclear detonations in USA and Marshal Islands, were not consistent with these models. According to DAB, t...

The canonical quantization of nonconservative systems is carried out according to the Dirac method. The canonical conjugate-momentum coordinates are defined and turned into operators that satisfy the commutation relations, corresponding to the Poisson-bracket relations of the classical theory. These are generalized and the equations of motion are r...

Following our work on the quantization of nonconservative systems using fractional calculus, the canonical quantization of a system of free particles in a dissipative medium is carried out according to the Dirac method. A suitable Schrödinger equation is set up and solved for the Lagrangian representing this system. The wave function is plotted and...

Radionuclides produced in fission process moves from its source, to human food chain to become available for human consumption determines their effects on his health. According to models used to predict health effects of these radionuclides enter the human body, a large number of fatalities, malignancies, thyroid cancer, born (genic) defects, etc....