Shireen Mohammed | University of Zakho (original) (raw)

Papers by Shireen Mohammed

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Oriental journal of chemistry, Oct 29, 2023

The Mahogany field was discovered in 1968 and appraisal was completed in 1996. The field is locat... more The Mahogany field was discovered in 1968 and appraisal was completed in 1996. The field is located 50 miles offshore eastern Trinidad (Fig. 1) with the platforms situated in water depths of 230 feet and contains more than 30 stacked sands (17 of which are gas bearing) with a development footprint area of c. 10000 acres. Initially the field’s resources were booked assuming volumetric depletion was the dominant drive mechanism (Nandalal and Gunter 2003), however the updated understanding showed that water drive was the prevailing mechanism with near volumetric depletion being exhibited by only two reservoirs within the field, the TQ51 FB4 and TQ51 FB5. There were two development wells in the TQ51 FB4, MA04 and MB13. MA04 became liquid loaded and stopped producing in March 2004 after fourteen months of concurrent production with MB13. MA04 showed volumetric behaviour until late life. Due to the volumetric response exhibited by the reservoir, the MB13 well was assigned low pressure access resources and was also used as a swing well to compensate for gas market demand fluctuations. Conventional material balance techniques (P/Z, Havlena Odeh, van Everdingen Hurst aquifer match) led to the belief that the drive mechanism was volumetric to very weak aquifer support. Pressure Transient Analysis (PTA) and pore volume material balance estimates showed the presence of an edge drive aquifer. This was corroborated by geological studies which showed that although the two reservoirs had the same initial gas water contact (GWC), with production they became two separate compartments exhibiting different properties, the aquifer acting via an edge drive mechanism.

Oriental journal of chemistry, Sep 22, 2015

Free radical multicomponent reactions (MCR) aremore flexible and fulfillfor an efficient carbo-fu... more Free radical multicomponent reactions (MCR) aremore flexible and fulfillfor an efficient carbo-functionalizationof olefins 1 .Radical MCRs have thus attracted a considerableattention.More recently, the addition of carbonfragments across the π-bond of non-activated olefins throughfreeradical pathways has received intense scrutiny, resulting inthe description of useful transformations, such as for instancecarbo-alkenylation 2,3 , carboalkynylation 4 andcarbo-allylationofolefins.These processes also illustrate the importance of theinfluence of polar effects in free-radical MCRs 5. Various electrophilic species maybe envisioned, but sulfones including vinyl 6-,alkynyl-,allyl 7-and azido-sulfones 8 hold a prominent place, due to the

IntechOpen eBooks, Aug 10, 2022

Over the last two decades, the electronic equipment has increased dramatically around the world, ... more Over the last two decades, the electronic equipment has increased dramatically around the world, which causes increasing in e-waste as well. This increasing has affected the environment badly. E-waste disposal has become one of the most critical issues and concerns have raised of it because most of these products do not biodegrade easily and they are toxic. Different strategies have been followed in many countries in order to solve the e-waste problem. Understanding these strategies can help to plan better for e-waste management correctly. Awareness of people about the e-waste impacts is crucial, because it can ensure people participation in managing the e waste process. This research has carried out in order to introduce to the e-waste impacts on environment and human health, and the importance of people awareness about these impacts. In addition, it shows many strategies that have been used in different countries to manage the e-waste, choosing the successful one to focus in order to benefit from it. Furthermore, a surveying has been carried out to exam people awareness in Iraq about the e-waste impacts. Finally, recommendations to manage e-waste successfully have been added.

Zenodo (CERN European Organization for Nuclear Research), Oct 1, 2015

The addition of electrophilic precursors such as benzylketone and weinreb amide xanthate across t... more The addition of electrophilic precursors such as benzylketone and weinreb amide xanthate across the double bond of unactivated olefins provides access to the corresponding three-component adducts in good to the excellent yields under mild conditions.

PolyTechnic, Mar 15, 2023

Background and objectives: Psychological disturbance is one of the most significant feature among... more Background and objectives: Psychological disturbance is one of the most significant feature amongst individuals who are served military tasks. This study presented the Post Traumatic Disorder (PTSD) among the peshmargas (Kurdish military personnel) who joined in ISIS war. The aim of this study is to determine the prevalence of post-traumatic stress disorder among peshmargas returning from war and to identify the associated factors of PTSD among the study sample. Methods: A purposive sample of 113 peshmargas had been studied during the period 1 st of January to 1 st of June 2018. The participants' responses to the PTSD Checklist had been recorded by the researchers. Results: The study revealed that 21.24% of peshmargas suffered from some symptoms of PTSD, more than half (52.21%) of them suffered from moderately to moderately high severity symptoms, and (26.55%) of them suffered from high severity of PTSD. It has been concluded that the high prevalence of PTSD among peshmargas needs attention from the concerned health institutions Conclusions: Evidence based research on treatment of PTSD among combat soldiers is neglected internationally. Most studies are needed to diagnosis the PTSD and other Psychological and Psychiatric disorder among non-deployed and deployed Peshmargas. Further research is needed to study the impact of positive PTSD on the psychosocial aspect of Peshmargas.

Automotive Experiences, Jan 28, 2023

One of the most important aims of incident management is the clearance of the incident scene as f... more One of the most important aims of incident management is the clearance of the incident scene as fast as possible. The accident Investigation provides physical evidence at the accident site for the investigators. This physical evidence is much more reliable than the witness's statements and they are very crucial for the incident reconstruction. The cars accidents investigation is a dangerous activity, so it should be undertaken with suitable, accurate, and fast equipment. Many law enforcement agencies in the world have used different surveying techniques for accident investigations including the coordinate method, total station, photogrammetry, laser scanner, etc. Therefore, this research has been carried out in order to introduce the benefits of using surveying techniques in traffic accident investigations, and show their impacts on evidence documentation and scene clearance. This is done by focusing on the advantages and the disadvantages of each method based on the relevant works of literature and compares between them. Although comparison result shows that the traditional method(coordinate method) is simpler and cheaper than other methods, surveying techniques methods are safer, and faster in clearing the accident scene, fewer investigators are needed, the scale can be provided directly, high accuracy measurements can be obtained, and three dimensions models can be produced. So it's worth using the surveying equipment in cars accidents investigations.

Automotive Experiences

Diyala Journal for Pure Science, 2016

IOP Conference Series: Materials Science and Engineering, 2020

This paper presents the study on the impact of the nonlinear phase shift on the performance of op... more This paper presents the study on the impact of the nonlinear phase shift on the performance of optical transmission systems and its suppression using digital backpropagation (DBP) technique. The proposed DBP employed digital optical phase conjugation (DOPC) at the receiver and a virtual fiber, thereby having the combined benefits of DBP and optical phase conjugation. Optical signal propagation was achieved by solving the nonlinear Schrödinger equation (NLSE) using the split-step Fourier method (SSFM). Implementation of DBP was conducted on 100-Gbps, DP-16QAM systems and it has demonstrated its efficacy in suppressing nonlinear phase shift, by improving the minimum bit error rate (BER) from 1 × 10−2 to 6.1 × 10−5.

Menoufia Medical Journal, 2017

Objectives This work aimed to study chronic renal failure (CRF) in an adenine induced rat model u... more Objectives This work aimed to study chronic renal failure (CRF) in an adenine induced rat model using light microscopic, electron microscopic examinations in addition to morphometric studies. Past studies of adenine induced rat model of CRF did not emphasize on the electron microscopic changes that accompany CRF. Background Long term feeding of adenine to rats produced metabolic changes resembling chronic renal failure in humans. Among the changes happened were loss of weight and accumulation of uremic toxins (urea and creatinine). The pathological findings in the kidneys revealed glomerular and tubulo-interstitial damage. In the current work, we stressed on the changes that happen in the ultra-structural level. Methods Thirty adult male albino rats were divided into 2 groups: Group (I) ten rats, kept without any treatment, and sacrificed after 4 weeks. Group II (chronic renal failure induced group) twenty rats, received adenine powder daily (0.75% w/w for 4 weeks in food i.e., a daily adenine dose of 0.075 grams was added to 10 grams of food for each rat). Initial and final weights were recorded. Blood samples were collected for kidney function tests. Kidney sections were prepared for light and electron microscopic examination. Morphometric and statistical analysis were done. Results In comparison with the control group, the CRF induced group showed a significant decrease in their final body weight (P < 0.001), significant increase in the urea and creatinine levels (P < 0.001) and significant increase in collagen fiber surface area. Conclusion Long term feeding of adenine exerted a marked inflammatory, fibrotic and apoptotic accelerating effect on both the glomeruli and the tubules.

International Journal of Current Research and Review, 2015

Oriental journal of chemistry, Apr 30, 2023

The current assignment depicts the structure of recent quinoline derivatives. This method begins ... more The current assignment depicts the structure of recent quinoline derivatives. This method begins with the structure of imine derivatives through the condensation reaction of ethyl 2-aminobenzoate with various substituted aliphatic aldehydes and ketones in the existence of sodium hydroxide as a catalyst. While the second step includes the intra-cyclization process of the imine compounds in presence of a base like tertiary butoxide that resolute installs the hydroxyl-group on the bicyclic skeleton and aromatic amines. The molecular docking program Flare V4.0 was applied to investigate the biological activities of divers produced compounds against E.coli bacteria. Spectral data support the compounds of each the recent outputs acquired during this assignment.

Education Research International

Indigenous perspectives hold promising opportunities for education and practice. It is possible t... more Indigenous perspectives hold promising opportunities for education and practice. It is possible to entertain indigenous knowledge into adult education through modelling, guided practice, and application approaches. However, there are several limiting factors to do so. Today, many indigenous knowledge systems and practices are at risk of becoming extinct because of rapidly changing natural environments and fast pacing economic, political, and cultural changes on a global scale. Considering this, therefore, this study is aimed at exploring the integration, existing practical challenges of indigenous based adult education, and forward contextual consideration from the perspectives of learning material development. In doing so, a case study research design was employed. Date was collected from adult education experts, adult literacy centre coordinators and adult learners who were drawn by using purposive sampling technique. Data were obtained through interview and FGD. Thematic analysis...

Frontiers in Psychology

In the literature, a mass of studies have inspected the effects of computer-assisted language lea... more In the literature, a mass of studies have inspected the effects of computer-assisted language learning (CALL) and mobile-assisted language learning (MALL) on Iranian English as a Foreign Language (EFL) learners’ achievement. However, the effects of CALL and MALL on psychological factors, such as motivation, anxiety, and self-efficacy, have largely remained unexplored. Thus, this study explored the effects of CALL and MALL, and face-to-face (FTF) learning environments on Iranian EFL learners’ motivation, anxiety, and self-efficacy. To this aim, using a random sampling method, a total of 137 male EFL intermediate learners were selected and homogenized using the Oxford Quick Placement Test (OQPT). Based on the test scores, a total of 90 EFL learners were selected and randomly assigned to three groups, namely, CALL (n = 30), MALL (n = 30), and FTF (n = 30). Then, the participants’ motivation, anxiety, and self-efficacy were gauged prior to the instructions. Afterward, they received CALL...

IOP Conference Series: Earth and Environmental Science, 2021

Green technology can be defined as the use of science and technology to create products that are ... more Green technology can be defined as the use of science and technology to create products that are less harmful to the environment. It is environmentally friendly, the aim of it is to protect the environment. It can also refer to clean energy productions, which means using alternative technology and fuels that do not harm the environment. This technology includes infrastructure tech, which uses to create clean energy, recycle waste, purify water and natural resources conservation, and so on. Many countries are looking to support the growth of the economy and improve their citizens lives to live in a healthy environment without harming the planet, and this can be done by having a full understanding of this tech. In this research, a survey has been done to exam the community awareness about green technology in three cities in Iraq. The result shows that most people from different generations are not aware of this technology. As a result of this surveying, a few recommendations have been...

This study aims to assess the nurse knowledge regarding the importance of the bedside shift repor... more This study aims to assess the nurse knowledge regarding the importance of the bedside shift reports in improving the quality of nursing care at Elmak Nimer University Hospital, between April to October 2018. Fifty five nurses participated and a questionnaire was used for data collection. More than two third of the participants were found knowledgeable about the general benefit of the bedside shift report and its role in increasing the level of communication between nurses and patients and among nurses. Besides, the participants were found knowledgeable about the importance of the bedside report during the application of the nursing care plan and it is a benefit to minimize nursing care errors and increasing job satisfaction. There was no significant relationship found between the qualification of the participants and their knowledge about the importance of the bedside shift report in the implementation of the nursing care plan. However, a shortage of staff and the limitation of tech...

Journal of Physics: Conference Series, 2021

Inaccessible points are difficult to measure because the prism cannot be position in these points... more Inaccessible points are difficult to measure because the prism cannot be position in these points, so reflector-less total station has solved this problem and these points can be measured easily. But the vital question is, if these measurements are accurate and reliable. This research has carried out to identify the vital methods measurements that have to be done to identify the reliability and the exact accuracy of the reflector-less measurements. Results are not general for all total station types because each instrument has its own specifications, and the continues use of the instrument (old used instruments) could affect the accuracy of measurements. In the third world countries or in specific in our cities, old version surveying instruments are still used in most projects. In some projects specially in high accuracy projects (such as bridges monitoring by using total station), it is important to know the exact distance that errors are going to be introduced by using reflector l...