Academic Science Journal https://acadscij.uodiyala.edu.iq/index.php/Home <p><a href="https://portal.issn.org/resource/ISSN/2958-4612"><em><strong>P-ISSN:2958-4612 </strong></em></a></p> <p><a href="https://portal.issn.org/resource/ISSN/2959-5568"><em><strong>E-ISSN: 2959-5568</strong></em></a></p> <p><strong><em>Academic Science Journal (Acad. Sci. J.) is a peer reviewed quarterly scientific journal published by the College of Science, University of Diyala. It publishes papers in the fields of pure science such as chemistry, physics, biology, mathematics, computer science and geology. The journal consists of research publications that can be immediately accessed by scholars, policymakers, students, and the general public. The journal is an open access journal and is free to download. The journal follows the Creative Commons Attribution (CC-BY) license. Either the authors or their funding agencies or institutions pay the charges to finance the publication of the journal.</em></strong></p> <p> </p> <ul> <li> <strong><em>Major Topics and Coverage</em></strong></li> </ul> <p><strong> </strong></p> <p><em><strong>The Academic Science Journal publishes original, peer refereed research papers related to the pure sciences -- physics, chemistry, biology, geology, mathematics and computer science -- and their applications. The journal focuses on publishing articles which are comprehensive, fully-documented reports of original research with complete results and conclusions. Review articles can also be published. These articles should be critical evaluations of the existing state of knowledge on a particular topic or in an area within the scope of the journal with a complete literature survey and a critically selected treatment of the material. Unsolved problems and possible solutions can also be discussed.</strong></em></p> <p> </p> <ul> <li><em><strong>Language</strong></em></li> </ul> <p> </p> <p><em><strong>The Journal accepts and publishes articles in English language.</strong></em></p> <p> </p> <ul> <li><em><strong>Address of Correspondence and Enquiry</strong></em></li> </ul> <p> </p> <p><strong><em>Academic Science Journal, College of Science, University of Diyala, Baqubah - Diyala - Iraq.</em></strong></p> <p><strong><em>Email: acad.sci.j@uodiyala.edu.iq</em></strong></p> en-US majed@uodiyala.edu.iq (Lieth A. Majed) acad.sci.j@uodiyala.edu.iq (Sara M. Fawzi) Fri, 31 Jan 2025 17:28:37 +0000 OJS 3.3.0.10 http://blogs.law.harvard.edu/tech/rss 60 Evaluation of the a-amylase enzyme, Carbohydrate Antigen CA-15.3 ( C.A 15.3),and some biochemical variables in the blood serum of breast cancer patients https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/190 <p>Evaluation of the amylase enzyme and some biochemical variables in the serum of breast cancer patients for all stages of the disease in patients compared to healthy women.</p> <p>The tumor marker (C.A 15.3) is one of the most reliable markers for monitoring metastatic breast cancer.</p> <p>The results obtained from this study indicated that (C.A 15.3) values were high in women with breast cancer in all stages of the disease, and the values were very high especially in the last two stages of the disease. Alpha amylase enzyme values, and these values increase with the progression of the disease. It can be considered one of the most important diagnostic markers for breast cancer.</p> <p>The results of this study also indicate that AST, ALT, and ALP rise, with disease progression.</p> <p><strong>Keywords:</strong> <strong>Amylase Enzyme</strong><strong> ,Carbohydrate Antigen CA-15.3 ,</strong><strong> Breast cancer.</strong></p> Nagham abd, Ebtehal Sabri Mohammed, Amer Fadel Dawood Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/190 Wed, 01 Jan 2025 00:00:00 +0000 دراسة تأثير جسيمات Zn2SnO4 النانوية على النشاط المضاد للبكتيريا باستخدام طريقة المحلول الغروي( Sol-Gel) https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/249 <p>الخلاصة:&nbsp;</p> <p>في هذه الدراسة، تم تحضير جسيمات ستانات الخارصين Zn2SnO4 (ZTO) النانوية باستخدام طريقة المحلول الغروي sol-gel. استخدمت تقنية حيود الأشعة السينية لفحص جسيماتZn2SnO النانوية والتي أظهرت أنها ذات بنية متعددة البلورات وهي من النوع المكعب. أظهرت قياسات المجهر الإلكتروني الماسح للانبعاث المجال (FE-SEM) أن الجسيمات كانت عبارة عن تراكيب نانوية ذات أشكال منتظمة، وكان متوسط أبعادها 162.01 نانومتر. أظهر المجهر الإلكتروني النافذ (TEM) ظهور صفائح نانوية وأخرى تشبه الميل النانوي. أظهرت جسيمات Zn2SnO4 النانوية نشاطا بيولوجيا ضد البكتيريا المسببة للأمراض، وأظهرت اختلافا في متوسط قطر التثبيط لجميع أنواع البكتيريا المستخدمة، وتراوح متوسط قطر التثبيط من 11 إلى 17 ملم.</p> Kawther Kawther, Ziad T. Khodair , Firas Mahmoud Hadi Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/249 Wed, 01 Jan 2025 00:00:00 +0000 Intelligent Antenna Array Systems for Modern Communication Networks https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/608 <p>In last two decades, Smart Antenna Systems (SAS) as well as Multiple Input Multiple Output (MIMO) systems have emerged as strong and efficient contenders for 5G wireless communication networks due to the advantages they may bring based on the improvements in transmission and reception of electromagnetic signals with respect to omnidirectional antennas. Although there is a fair amount of academic software previously available in this field, cross-use systems simulators do not utilize sufficient wireless system requirements to implement all requirements, and therefore, they do not provide the opportunity to emulate on the broadest lines where SAS or MIMO is more widely used. In this work, a new idea will be formed to improve MIMO 5th generation (5G) smart antenna using adaptive equalizer technology. This new proposal will appear distinctly and noticeably to improve the performance and efficiency of transmission and reception, in addition to its high sensitivity.</p> yahiea alnaiemy, Mohammed N. Majeed, Mohsin Ali Ahmed, Taha A. Elwi, Sarah Mohemmed Fawzi Hussein Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/608 Wed, 01 Jan 2025 00:00:00 +0000 Petrography of Sandstone Units of Injana Formation in Al-Teeb Area South Eastern Iraq https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/242 <p>Abstract<br>The present study deals with study the sandstone units of injana formation in Alteeb area, east of Missan governorate southeastern Iraq. Ten samples of these sandstone were collected in order thin sectined for petrogtaphic decribtion. these sandstone are composed from quartz (both monocrystalline and polycrystalline), feldspar (potash feldspar and plagioclase feldspar), and rock fragments (sedimentary, igneous, and metamorphic rock fragmentd), the sedimentary rock fragments composed from; carbonate, chert, old sandstone, mudstone, and evaporate rock fragments. Three types of cement will observe these are: carbonate, evaporate, and iron oxide cement.<br>These sandstone classify as litharenite, sedarenite, and calclithite, dure to the predominant of carbonate rock fragment. These sandstone chimachaly and michanicaly unstable due to low percentage of stable componants (quarts and chert).<br>Tectonically the Injana Formation was deposited under convergent plate boundaries: lithic recycled and transitional recycled conditions</p> Hasan Kattoof Jasim, Maysoon Omer Ali Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/242 Wed, 01 Jan 2025 00:00:00 +0000 Continuous User Verification in Cloud Storage Services using Deep Learning https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/616 <p>Cloud storage services have become a new paradigm for storing data user over the Internet. Users can access these services using a simple authentication login. This has led to increased potential attacks and misusing vital customer information. The behavior profiling technique has been successfully investigated as an additional intelligent security measure for continuous verification users after the simple login. A credible accuracy has been achieved when applying the method in a variety of applications such as telecommunication, credit card, and cloud services to detect and monitor misuse. To increase the accuracy of making a reliable decision, this paper proposes to combine two private datasets which are real-life user interactions with the desktop computer and Dropbox Cloud storage. The best experimental result achieved an EER of 3.6% based on applying a deep learning algorithm (CNN). This result indicates and encourages the feasibility of using behavioral profiling to protect cloud users from misuse.</p> burhan albayati Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/616 Wed, 01 Jan 2025 00:00:00 +0000 On Nano β_pc-Open Set and Some of Its Application https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/267 <p><strong>.</strong> The major objective of this work is to establish and assemble a new type of Nano pre-open termed a Nano- &nbsp;open set, which is an advanced form of Nano pre-open. Additionally, we identify a class of Nano -open sets in terms of Nano topology elements. Furthermore, this has a number of given properties. In this paper, we introduce a completely novel kind of Nano continuity that we've labeled Nano -continuous functions, and we address many of its characterizations.</p> Saif Saleh, Jamil Mahmoud Jamil Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/267 Wed, 01 Jan 2025 00:00:00 +0000 A Numerical Study of Linear Two-Points Boundary Value Problems with ODEs of Fourth-Order Using RKM Method https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/633 <p>This study established the numerical RKM approach for solving linear two-point boundary<br>value problems involving fourth-order ordinary differential equations. However, the proposed<br>developed numerical RKM method has been tested using some implementations in order to<br>compare it with the exact solutions to establish the method's validity. Furthermore, this<br>comparison demonstrates that the proposed direct integrator is more efficient than the indirect<br>method in terms of efficiency and accuracy. In addition, numerical implementations are used<br>in order to show the efficiency and time-based complexity of function evaluations. This direct<br>method's suggested strategy, which has wonderful qualities like quick and efficient calculation,<br>also requires fewer computational employees.</p> Mohammed S. Mechee, F. A. Fawzi , Shaymaa Mahmoud Abdullah Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/633 Wed, 01 Jan 2025 00:00:00 +0000 Synthesis and biological evaluation for some metal complexes with a new ligand (E)-3-(((2-amino-4-methylphenyl)imino)methyl)-4H-chromen-4-one https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/87 <p>Complexes of Co(II), &nbsp;Ni(II), Cu(II) &nbsp;Zn(II),&nbsp; and Cd (II) with the ligand 3-(((2-amino-4-methylphenyl)imino)methyl)-4H-chromen-4-one &nbsp;derived 3-formyl chromone with 4-methyl-O-phenylenediamine were synthesized and characterized by elemental analysis, FTIR,&nbsp; electronic spectra,&nbsp; magnetic moment and molar conductance. The prepared complexes have the general formulae [M(C<sub>17</sub>H<sub>14</sub>N<sub>2</sub>O<sub>2</sub>)<sub>2</sub>]Cl<sub>2</sub>, M = Co(II), Ni(II),&nbsp; Cu(II) and&nbsp; Zn(II) except complex of cadmium it have the formulae [Cd(C<sub>17</sub>H<sub>14</sub>N<sub>2</sub>O<sub>2</sub>)Cl]Cl.&nbsp; The data which obtain from&nbsp; analysis indicate&nbsp; that&nbsp; the complexes have octahedral geometry around the metal center except cadmium complex exhibit tetrahedral geometry. Two types of bacteria (<em>E.coli</em> ) and (<em>S. aureus</em> ) used to estimate the biological activities of complexes .</p> Adel Salim, Jinan Mohammed Mahmood Al-Zinkee, Areej Ali Jarullah Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/87 Wed, 01 Jan 2025 00:00:00 +0000 Evaluation of Antitumer activity of Ammi Majus seeds extract on Some cancer cell line https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/279 <p><span class="s17"><span class="bumpedFont15">Cancer is one of the major health problems in the world and is one of the important causes of an increase in deaths among children and adults</span></span> <span class="s17"><span class="bumpedFont15">, </span></span><span class="s19"><span class="bumpedFont15">Today many of the treatment methods are used to treat cancer. Unfortunately, in most cases very poor response is often associated with undesirable side effects</span></span> <span class="s19"><span class="bumpedFont15">has been made researchers to achieve more effective drugs with fewer side effects.</span></span> <span class="s17"><span class="bumpedFont15">The current study aimed </span></span><span class="s17"><span class="bumpedFont15">to detect t</span></span><span class="s17"><span class="bumpedFont15">he effect of </span></span><span class="s22"><span class="bumpedFont15">Ammi</span></span> <span class="s22"><span class="bumpedFont15">majus</span></span> <span class="s17"><span class="bumpedFont15">seeds</span></span><span class="s17"><span class="bumpedFont15"> extract</span></span><span class="s17"><span class="bumpedFont15">s</span></span> <span class="s17"><span class="bumpedFont15">( </span></span><span class="s17"><span class="bumpedFont15">aqueous and </span></span><span class="s17"><span class="bumpedFont15">ethanolic</span></span><span class="s17"><span class="bumpedFont15"> extracts)</span></span> <span class="s17"><span class="bumpedFont15">in treating</span></span><span class="s17"><span class="bumpedFont15"> some</span></span><span class="s17"><span class="bumpedFont15">cancerous lines (HepG2</span></span><span class="s17"><span class="bumpedFont15"> and </span></span><span class="s17"><span class="bumpedFont15">Hela</span></span> <span class="s17"><span class="bumpedFont15">) &nbsp;human cancer cell </span></span><span class="s17"><span class="bumpedFont15">lines.</span></span><span class="s17"><span class="bumpedFont15">The</span></span><span class="s17"><span class="bumpedFont15"> current study was </span></span><span class="s17"><span class="bumpedFont15">perfomed</span></span><span class="s17"><span class="bumpedFont15">in </span></span><span class="s17"><span class="bumpedFont15">Iraqi Center for Cancer and Medical Genetics Research (ICCMGR)</span></span> <span class="s17"><span class="bumpedFont15">in Baghdad </span></span><span class="s17"><span class="bumpedFont15">from </span></span><span class="s17"><span class="bumpedFont15">December to March (2023)</span></span><span class="s17"><span class="bumpedFont15">.</span></span> <span class="s17"><span class="bumpedFont15">T</span></span><span class="s17"><span class="bumpedFont15">he cancer cell lines were treated with different concentrations </span></span><span class="s17"><span class="bumpedFont15">(6.25 ,12.5 ,25, 50, 100,200 )</span></span><span class="s17"><span class="bumpedFont15">of the </span></span><span class="s22"><span class="bumpedFont15">Ammi</span></span> <span class="s22"><span class="bumpedFont15">majus</span></span><span class="s17"><span class="bumpedFont15"> seeds </span></span><span class="s17"><span class="bumpedFont15">extract</span></span><span class="s17"><span class="bumpedFont15">s &nbsp;(aqueous and </span></span><span class="s17"><span class="bumpedFont15">ethanolic</span></span><span class="s17"><span class="bumpedFont15"> extracts)</span></span><span class="s17"><span class="bumpedFont15">.The results showed the effect of </span></span><span class="s17"><span class="bumpedFont15">both seeds</span></span><span class="s17"><span class="bumpedFont15"> extract</span></span><span class="s17"><span class="bumpedFont15">s (aqueous and alcoholic)</span></span><span class="s17"><span class="bumpedFont15"> on the growth of </span></span><span class="s17"><span class="bumpedFont15">Hela</span></span><span class="s17"><span class="bumpedFont15">cell lines</span></span> <span class="s17"><span class="bumpedFont15">increased with increasing the concentration and</span></span> <span class="s17"><span class="bumpedFont15">give highest </span></span><span class="s17"><span class="bumpedFont15">inhibition rate</span></span><span class="s17"><span class="bumpedFont15">( 3.93 </span></span><span class="s17"><span class="bumpedFont15">±</span></span><span class="s17"><span class="bumpedFont15"> 72.69 %</span></span> <span class="s17"><span class="bumpedFont15">and 3.93</span></span><span class="s17"><span class="bumpedFont15">±</span></span><span class="s17"><span class="bumpedFont15"> &nbsp; 91.87 )</span></span> <span class="s17"><span class="bumpedFont15">in respectively ,</span></span><span class="s17"><span class="bumpedFont15">a</span></span><span class="s17"><span class="bumpedFont15">t a concentration &nbsp;</span></span><span class="s17"><span class="bumpedFont15">(</span></span> <span class="s17"><span class="bumpedFont15">200</span></span> <span class="s17"><span class="bumpedFont15">µg/ml</span></span><span class="s17"><span class="bumpedFont15">,</span></span><span class="s17"><span class="bumpedFont15">)</span></span><span class="s17"><span class="bumpedFont15">Wheareas</span></span> <span class="s17"><span class="bumpedFont15">t</span></span><span class="s17"><span class="bumpedFont15">he highest inhibition rate for the </span></span><span class="s17"><span class="bumpedFont15">seeds</span></span><span class="s17"><span class="bumpedFont15">extract</span></span><span class="s17"><span class="bumpedFont15">s </span></span><span class="s17"><span class="bumpedFont15">(aqueous and alcoholic) </span></span><span class="s17"><span class="bumpedFont15">on the growth of</span></span> <span class="s17"><span class="bumpedFont15">HepG2</span></span> <span class="s17"><span class="bumpedFont15">was</span></span> <span class="s17"><span class="bumpedFont15">( </span></span><span class="s17"><span class="bumpedFont15">3.18 </span></span><span class="s17"><span class="bumpedFont15">±</span></span><span class="s17"><span class="bumpedFont15"> 68.86 %</span></span> <span class="s17"><span class="bumpedFont15">and 1.36</span></span><span class="s17"><span class="bumpedFont15">±</span></span><span class="s17"><span class="bumpedFont15"> &nbsp; 79.31 %</span></span><span class="s17"><span class="bumpedFont15">)</span></span> <span class="s17"><span class="bumpedFont15">in respectively,</span></span><span class="s17"><span class="bumpedFont15"> at a concentration </span></span><span class="s17"><span class="bumpedFont15">(</span></span> <span class="s17"><span class="bumpedFont15">2</span></span><span class="s17"><span class="bumpedFont15">00</span></span><span class="s17"><span class="bumpedFont15">µg/ml</span></span> <span class="s17"><span class="bumpedFont15">)</span></span><span class="s17"><span class="bumpedFont15">,</span></span> ​<span class="s17"><span class="bumpedFont15">The</span></span><span class="s17"><span class="bumpedFont15"> current</span></span><span class="s17"><span class="bumpedFont15"> study concluded that the aqueous and alcoholic extract</span></span><span class="s17"><span class="bumpedFont15">s</span></span><span class="s17"><span class="bumpedFont15"> of the </span></span><span class="s22"><span class="bumpedFont15">Ammi</span></span><span class="s22"><span class="bumpedFont15">majus</span></span> <span class="s17"><span class="bumpedFont15">seeds </span></span><span class="s17"><span class="bumpedFont15">plant has an effect in the process of inhibiting cancer cell </span></span><span class="s17"><span class="bumpedFont15">lines.making</span></span><span class="s17"><span class="bumpedFont15"> this plant a promising candidate for cancer treatment</span></span><span class="s23"><span class="bumpedFont15">.</span></span></p> Shahd Amer Ismael, Izdehar Mohammed Jasim, Saba Adnan Abbas Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/279 Wed, 01 Jan 2025 00:00:00 +0000 Relation between Renal Function and Insulin Resistance of Type 2 Diabetic Iraqi Patients https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/632 <p>Type 2 diabetes mellitus (T2DM) is a condition where the body's ability to regulate and utilize<br>glucose as fuel is compromised. As a result of this chronic ailment, excess sugar circulates in<br>the bloodstream. Thus, it can be described as a cluster of metabolic disorders that manifest<br>through factors like insulin resistance and give rise to various complications. These conditions<br>impact several physiological organs, leading to reduced efficiency in their functioning. The<br>objective of this study was to assess the level of insulin in patients with Type 2 diabetes mellitus<br>(T2DM) and to interpret the relationship between insulin resistance (HOMA-IR) and renal<br>function. The methods employed in this investigation were designed to achieve these specific<br>aims, seventy patients and twenty controls were involved for this study. The patients of T2DM<br>was divided into three group according to them eGFR, 20 stage I patients (G1), 25 stage II<br>diabetic patients (G2) and 25 stage III diabetic patients (G3). Insulin, fasting plasma glucose<br>(FBG), HbA1c, and renal function were measured in all subject. The study's findings indicated<br>that patients in Group 3 (G3) with elevated glomerular filtration rate (GFR) exhibited<br>significantly higher insulin levels (14.48 μIU/ml) and HOMA-IR values (8.66) compared to<br>other patients. Moreover, diabetic patients had significantly higher serum insulin levels than<br>those in the healthy control group (P&lt;0.001). The diabetic group also demonstrated a marked</p> <p>degree of insulin resistance compared to the healthy control group. Additionally, a negative<br>correlation was observed between HOMA-IR, eGFR, and Duration in the diabetic patients.<br>Conclusion: higher insulin levels and insulin resistance appear to contribute to the development<br>of chronic kidney disease (CKD).</p> Rami Fadhel Lefta, Ekhlas Abdallah Hassan Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/632 Wed, 01 Jan 2025 00:00:00 +0000 Molecular Detection of Candida tropicalis Isolated from Immunocompromised Patients with Otitis Media https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/217 <p>Otomycoses are fungal infections that affect the external ear canal and, in some cases with perforated tympanic membranes, the middle ear. <em>Candida</em> are most common fungal genera causative agents of otomycoses. <em>Candida tropicalis</em> is a species of yeast in the genus <em>Candida</em>. One hundred swaps were collected from patients with otitis media who attended ENT consulting clinic at Baquba Teaching Hospital for a period extended from 15<sup>th</sup> of December 2022 to the 15<sup>th</sup> of March 2023. The specimens were collected from immunocompromised and immunocompetent patients (50 each of). Clinical diagnosis was done by consultant Otolaryngologist.&nbsp; Cultural methods including (Sabouraud's dextrose agar medium (SDA) and Hi-Chrom Candida agar) media with incubating at 37°C for 48 h, and Molecular methods (Conventional PCR and gene sequencing) for ITS and <em>Als2</em> genes were used for identification of <em>C. tropicalis </em>. The susceptibility of isolated <em>C. tropicalis</em> was tested toward fluconazole (10 mg) and miconazole (10 mg) antifungals by using disk diffusion method. The results were males have the highest rate among immunocompromised patients with otitis media (58.0%). According to the rate of <em>C. tropicalis</em> identification, 14.0% (7 out of 50) isolates were collected from otitis media immunocompromised patients. Antibiotic susceptibility results revealed that only 3 isolates of <em>C. tropiclais</em> (25.0%) were resistant against both antibiotics (Fluconazole and Miconazole). PCR results showed that the molecular weight of ITS and als2 genes are was 520 bp and 80 bp., respectively. The mutant isolate, has more than one substitution mutations. We are concluded that <em>Candida tropicalis </em>&nbsp;is reported as the most causative agent of otitis media. <em>Als2</em> gene may be play an important role in the virulence of <em>C. tropicalis</em> among immunocompromised patients with otitis media.</p> Aymen Nazar Khalil, Abbas M. Ammari Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/217 Wed, 01 Jan 2025 00:00:00 +0000 Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/138 <p>The Qamchuqa Formation was studied in Kosrat Anticline in Dokan area in Sulaimanyia governorate, Kurdistan region, Northeastern Iraq. The 14 slides of 14 rock samples were maked and studied under different microscopes. Petrographic properties and types of pores determined in this study, related to Qamchuqa Formation. The formation consists of three units. Lower Unit (162 m) consists of dark grey, massive limestone. Middle Unit (139 m) consists of alternation of grey very coarse crystalline dolomitic limestone and yellowish green marl. Upper Unit (384 m) consists of grey massive limestone and dolomitic limestone.</p> <p>The high values of porosity in the Qamchuqa Formation can be resulted from vuggy porosity and the stylolite systems too. The high values of porosity in last stage of pores evolution can be attributed to intercrystal porosity, vuggy porosity and secondary fractures systems.</p> <p>Three types of pores were found in Qamchuqa Formation, these are intercrystal dolomite pores, vuggy pores, and microfracturs pores. The Qamchuqa Formation in the present study at Kosrt anticline can be considered as a petroleum reservoir because of the ratio of bitumen materials to the size of pores. As well as, Qamchuqa Formation in the present study is characterized by leakage of petroleum materials to the surface.</p> <p>&nbsp;</p> Abdalratha Mohammed sahaab Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/138 Wed, 01 Jan 2025 00:00:00 +0000 Preparation and Characterization of TiO2 Nanoparticles via a Sol- gel Method https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/225 <p>TiO2 nanoparticles (NPs) were prepared by the sol-gel method by using TiCl4 as a starting<br />material, whereas the applied temperatures were 450 °C and 900 °C. The XRD results showed<br />that nanoparticle (TiO2 NPs) anatase and rutile phases had a polycrystalline nature with a<br />tetragonal structure. FESEM results showed the formation of nanostructures with cauliflower<br />and irregular shapes with average particle sizes of 36.9 nm and 58 nm for the Anatase and Rutile<br />phases, respectively. The EDS spectra showed that the elements present in the synthesized TiO2<br />NP (anatase and rutile) phases were Ti and oxygen O. The FTIR spectra of TiO2 NPs showed<br />the presence of broadband at 450–4000 cm−1<br />corresponding to the stretching vibration of<br />terminating hydroxyl groups in the samples. The UV‒Vis-NIR absorbance spectra were<br />recorded in the range of 300–900 nm to investigate the optical characteristics. Results showed<br />that the absorption of TiO2 in the Anatase phase is less than that of TiO2 in the Rutile phase.<br />The optical energy gaps were 3.05 and 2.7 eV for the Anatase and Rutile phases, respectively.<br />Keywords: TiO2, Anatase phase, Rutile phase, FE-SEM, EDS.</p> maryam satar, Olfat A. Mahmood, Zainab N. Jameel Copyright (c) 2025 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/225 Wed, 01 Jan 2025 00:00:00 +0000