Rasha S Ahmed

Nahrain University

In the present study, radon concentrations were measured in soil samples collected from different sites in Kadhimiya district center in Baghdad, Iraq. A CR-39 passive nuclear track detectors was used to assess the radon concentrations through the sealed can technique. This study include an assessment of various radiation hazard parameters in 25 soi...

Objective: This research aimed to determine the most effective dosages and achieve improved outcomes without surgical intervention, discomfort, or blood loss. Its objective was also to regulate the formation of both benign and malignant tumours and reduce tumour size. Patients and Methods: A study involving 50 patients at Dr. Saad Al-Witry Hospital...

This research aims to develop a novel approach, employing cold plasma technology for preparing nanoparticles of silver oxide by Anethum graveolens (dill) leaf extract as a natural reducing agent. This investigation evaluated the properties of antibacterial and antibiofilm-prepared nanoparticles. Initially, dill leaf extract was prepared to stabiliz...

In the current report, MgO nanoparticles are synthesized by the plasma-assisted reduction method. This method is eco-friendly due to its safety, not use of toxic reducing agents, low cost, and rapid synthesis. Several techniques were employed to determine the crystalline size, particle size, morphology, elemental analysis, and optical properties of...

This research aims to develop a new method for preparing silver oxide nanoparticles using Anethum graveolens (dill) leaf extract as a natural reducing agent, using cold plasma technology. This study was designed to evaluate the antibacterial and anti-biofilm properties of the prepared nanoparticles. Initially, dill leaf extract was prepared and use...

Uranium is a radioactive element that can pose a risk to human health if ingested or inhaled. Exposure to high levels of uranium can increase the risk of cancer. Measuring uranium concentration in soil can help identify areas where there may be a risk of exposure to high levels of uranium and take appropriate measures to protect public health. In t...

Fat suppression magnetic resonance imaging (MRI) sequences are routinely included in the MRI protocol for patients with perianal fistula to improve the visibility of the abnormal tracts and abscesses against the background of hypo-signal intensity on the image. The objective of this study is to compare the turbo inversion recovery magnitude (TIRM)...

Introduction . Perianal fistula rapidly develops an abscess, requiring surgical decompression. However, simple cases must be managed. However, for patients with renal insufficiency, MRI with contrast is contraindicated. It is proposed to use diffusion-weighted images that can diagnose anal fistulae, showing areas of high signal intensity (inflammat...

Background: The Gamma Knife (GK) radiosurgery is a successful treatment option for brain tumours and functional disorders such as meningioma. The objective of this study aimed to assess better plan treatment such as multisession and hypo fractionation and single session stereotactic radiosurgery.

Wide range of studies have been conducted around the word focusing on the evaluation of radionuclide concentrations in foodstuff. This work focusing on the estimation of the annual effective dose due to radionuclide activity in Iraqi wild fungus, specifically black desert truffles. The fungus have been collected from the desert of As Samawah govern...

Some governorates of Iraq are considered as uranium-contaminated areas. The spread of cancerous tumors injuries was recorded in different parts of Iraq at very high rates. As cancer is closely related to high level of uranium in the blood, this study was conducted on women with breast cancer to evaluate the uranium concentrations in their blood. Th...

Evaluation of radionuclide concentration in our environment is beneficial in tracking health problems. In Iraq, several studies regarding the assessment of naturally occurring radionuclide concentration have been performed by many researchers around the country. Here we review the studies performed to evaluate the concentration of radionuclides in...

The aim of this study is to evaluate the risk of alpha emitter’s concentrations and measure it in human blood. The current study was done in the central laboratory and archaeologist employees of the Iraqi museum; likewise, the study also involved employees in State board of antiquities and heritage and Abd al-karim qasim museum that are located in...

Background Changing the distance between a sample and an exposed solid-state nuclear track detector affects the number of alpha tracks recorded by the detector. This concept had been used to distinguish high-energy alpha particles by computing the alpha emission rate at two distances (0 and 2 cm) from animal bone ash.Materials and methodsTwo Cr-39...

Environmental monitoring for outdoor and indoor radon is very significant for public health to evaluate the probability of developing respiratory system cancer, and to offer proper procedures that reduce the outdoor or indoor radon concentration. In southern Iraq, several cases of various types of cancer injuries have been reported in the literatur...

Abstract Background: Pituitary adenomas are one of the most common primary central nervous system tumors. Approximately half of the pituitary adenomas secrete distinct pituitary hormones. Because of their pathophysiologic endocrine secretion and anatomic location near critical neural/vascular structures, hormone-secreting pituitary adenomas require...

Background: Pituitary adenomas are one of the most common primary central nervous system tumors. Approximately half of the pituitary adenomas secrete distinct pituitary hormones. Because of their pathophysiologic endocrine secretion and anatomic location near critical neural/vascular structures, hormone-secreting pituitary adenomas require defined...

Cancer is a widespread significant health problem in Iraq and contributes 11% to total deaths. Throughout the Gulf Wars of 1991 and 2003, about 1200 tons of ammunition were dropped around Iraq. After the wars, cancer incidence in Iraq is about 7,000 to 8,000 cancers cases per year, and the overall incidence of lymphoma, leukemia, breast cancer, and...

Human being exposed to naturally occurring ionizing radiation throughout their lives as these radionuclides are present in different amounts in our environment. Gamma radiation emitted from uranium (U), thorium (Th), radium (Ra), potassium (K) and cesium (Cs) radionuclides and their decay products represents the essential external source of radiati...

Wide range of studies have been conducted around the word focusing on the evaluation of radionuclide concentrations in foodstuff. This work focusing on the estimation of the annual effective dose due to radionuclide activity in Iraqi wild fungus, specifically black desert truffles. The fungus have been collected from the desert of As Samawah govern...

Human being exposed to naturally occurring ionizing radiation throughout their lives as these radionuclides are present in different amounts in our environment. Gamma radiation emitted from uranium (U), thorium (Th), radium (Ra), potassium (K) and cesium (Cs) radionuclides and their decay products represents the essential external source of radiati...

In this study, the radon gas concentration as well as the annual effective dose in leaves of the Malvasylvestris (Khabbaz) plant used in the traditional treatment and as food in Iraq, for this, it is necessary to evaluate the concentrations radon gas, which were measured using solid state nuclear track detectors (SSNTDs) CR-39 technique. The Rn 222...

Single cell gel electrophoresis (SCGE), also called comet assay, is a rapid and sensitive technique used to analyse DNA Fragmentation Index(DFI). This study aimed to evaluate DNA damage in lymphocytes due to ionizing radiation in workers of Al-Tuwaitha nuclear site, which has been used for nuclear activities and contains a potentially significant a...

The radon-222 concentrations have been measured in black desert truffles collected from Samawah governorate in southern Iraq. The truffle samples have been collected randomly from several locations in Samawah desert. The radon concentrations were found to vary from 30.86 to 112.34 with an average of 58.27 Bq/m³. The present results have been compar...

The nuclear level density parameter in non Equi-Spacing Model (NON-ESM), Equi-Spacing Model (ESM) and the Backshifted Energy Dependent Fermi Gas model (BSEDFG) was determined for 106 nuclei; the results are tabulated and compared with the experimental works. It was found that there are no recognizable differences between our results and the experim...

Henna leaves are a priority material for hair dyes and body tattoos and have been used for this purpose for decades. In Iraq, henna is used widely but it requires substantial controls. Iraq is considered an environmentally polluted area as a result of the wars it has experienced, hence, this study has been conducted to calculate the level of 222-Rn...

Studies have been conducted in some southern Iraqi governorates to measure the radioactive contamination in the soil and have revealed that these areas are contaminated with radioactive materials. In these test sites, where many military operations have been conducted and that may have been affected by the Chernobyl accident, pollution and its impa...

Clay soil samples (0, 30, and 60 cm depths) were collected from two districts (Abu Al Khasib and Ad Dayr) in Basrah governorate in southern Iraq for gamma-ray spectroscopy. The activity concentrations for natural existing radionuclides in 18 soil samples were measured using high-purity germanium detector HPGe. From the obtained results of γ -ray sp...

The activity concentrations for 232 Th, 238 U, 40 K, and 137 Cs were measured in bentonite samples using high purity germanium detector. These samples were collected from the main distribution markets in Baghdad, the capital of Iraq. The mean activity concentrations for 232 Th, 238 U, 40 K and 137 Cs were found to be 6.10, 5.89, 162 and 1.8 Bq/kg r...

The activity concentrations for 232Th, 238U, 40K, and 137Cs were measured in bentonite samples using high purity germanium detector. These samples were collected from the main distribution markets in Baghdad, the capital of Iraq. The mean activity concentrations for 232Th, 238U, 40K and 137Cs were found to be 6.10, 5.89, 162and 1.8Bq/kg respectivel...

The activity concentrations for 232Th, 238U, 40K, and 137Cs were measured in bentonite samples using high purity germanium detector. These samples were collected from the main distribution markets in Baghdad, the capital of Iraq. The mean activity concentrations for 232Th, 238U, 40K and 137Cs were found to be 6.10, 5.89, 162 and 1.8 Bq/kg respectiv...

Relatively high activity concentrations of some radionuclides (226Ra, 238U, 232Th, and 40K) have been measured in surface and subsurface soils in areas (southern Iraq) where many warfare actions have taken place during the Iran–Iraq and Gulf wars. Such high activity concentrations might be related to the increase in cancerous injuries and birth def...

attended at The 1st international conference of physics for sustainable development 28-10 October 2014, Alnahrain University, college of science, Baghdad, Iraq, waiting for acceptance

accepted in al-nahrain university journal for science.

wop-nucleus, (_^2)H-nucleus, (_^3)H-nucleus, and (_^4)He-nucleus inverse reaction cross sections have been determined using the optical model potentials in a wide range of target nuclei started from A=1 to A=232 using several incident particle energies ( E=2, 8, 10, 20, and 40 MeV). In this work, a large number of optical model available parameters...

At the 1st international conference of physics for sustainable development 28-10 October 2014, Alnahrain University, college of science, Baghdad, Iraq.

accepted in al-nahrain university journal for science

started working on it since 1-3-2015

The single-particle level densities for Th 232 90 , at certain exciton number, are calculated in terms of Equidistant Space Model, ESM, and NON-ESM, of Fermi Gas Model. It is found that the single particle level density, g, has no longer a constant value and becomes an energy dependent on the contrary with NON-ESM. The finite depth of the nuclear w...

The single-particle level densities for Th 232 90 , at certain exciton number, are calculated in terms of Equidistant Space Model, ESM, and NON-ESM, of Fermi Gas Model. It is found that the single particle level density, g, has no longer a constant value and becomes an energy dependent on the contrary with NON-ESM. The finite depth of the nuclear w...

The single-particle level densities for Th 232 90 , at certain exciton number, are calculated in terms of Equidistant Space Model, ESM, and NON-ESM, of Fermi Gas Model. It is found that the single particle level density, g, has no longer a constant value and becomes an energy dependent on the contrary with NON-ESM. The finite depth of the nuclear w...

Key words The nuclear level density parameter a in non Equi-Spacing Model (NON-ESM), Equi-Spacing Model (ESM) and the Backshifted Energy Dependent Fermi Gas model (BSEDFG) was determined for 106 nuclei; the results are tabulated and compared with the experimental works. It was found that there are no recognizable differences between our results and...

The particle-hole state densities have been calculated for 232Th in the case of incident neutron with  ,  1 Z Z T T T T and   2 Z T T . The finite well depth, surface effect, isospin and Pauli correction are considered in the calculation of the state densities and then the transition rates. The isospin correction function ( ) iso f has been ex...

The single-particle level densities for Th 232 90 , at certain exciton number, are calculated in terms of Equidistant Space Model, ESM, and NON-ESM, of Fermi Gas Model. It is found that the single particle level density, g, has no longer a constant value and becomes an energy dependent on the contrary with NON-ESM. The finite depth of the nuclear w...

Key words The nuclear level density parameter a in non Equi-Spacing Model (NON-ESM), Equi-Spacing Model (ESM) and the Backshifted Energy Dependent Fermi Gas model (BSEDFG) was determined for 106 nuclei; the results are tabulated and compared with the experimental works. It was found that there are no recognizable differences between our results and...

Key words The particle-hole state densities have been calculated for 232 Th in the case of incident neutron with 1 ,    Z Z T T T T and 2   Z T T. The finite well depth, surface effect, isospin and Pauli correction are considered in the calculation of the state densities and then the transition rates. The isospin correction function) (iso f ha...

In pre-equilibrium nuclear reactions, the transition rates are important quantities used to calculate the master equation and the differential cross section. These transitions have been calculated in case of protons and neutrons incident on a heavy nuclei like 232 Th. Different effective squared matrix elements for interactions are used in the calc...