Portal of Cihan University-Erbil Scientific Journals
Not a member yet
439 research outputs found
Sort by
Ad Hoc On-demand Distance Vector Inherent Techniques Comparison for Detecting and Eliminating the Black Hole Attack Nodes in Mobile Ad Hoc Network
No full textIt is important to connect wirelessly a group of moving mobile nodes together in a static or dynamic form, to transfer digital data between them, this form known as a mobile ad hoc network. This private network can be used in different essential situations where it depends on each connected mobile node to deliver and pass the data between them, without any fixed access point or router. Unfortunately, there are different types of attacks that can affect these nodes, and steal or corrupt the data inside, one of these attacks called the black hole attack. In this paper, a compared study will be done between two major innovative techniques derived from the ad hoc on-demand distance vector routing protocol to avoid the black hole attack; the paper will compare the two techniques in delay, throughput and packet dropping efficacy
Bromodomain Inhibitor JQ1 as a Candidate Therapeutic Agent in Malignant Pleural Mesothelioma
No full textMalignant pleural mesothelioma (MPM) is a rare tumor that develops from the mesothelial linings of the pleural, pericardial, and peritoneal cavities. The actual risk factor for developing the disease is exposure to asbestos in workplace. Bromodomain and extraterminal (BET) domain proteins are epigenetic signaling agents that associate with acetylated histones and expedite the transcription of target genes. This study investigates whether the small molecule BET protein inhibitor JQ1 specifically may be an effective therapy for MPM. Reverse transcriptase polymerase chain reaction methods reveal an inclusive change in gene expression implying that JQ1 is a potential inhibitor which targets the BET proteins. Our results report that JQ1 has tumor-suppressive effects as it significantly ceased cellular activity in MPM cell lines. We predict that JQ1 may be the promising therapy for pleural mesothelioma cancers
Mobil Marketing Relationship with Young Users: An Exploratory Study of a Sample of Consumers in Erbil Governorate
No full textتهدف هذه الدراسة إلى التعرف على مفهوم التسويق عبر الهاتف لكونه أحد أهم الموضوعات التي عادة مايتم الاغفال عنها من قبل منظماتنا لكون معظمها لا يزال يعمل بالطريقة التقليدية، والهدف العملي الآخر هو قياس العلاقة بين التسويق عبر الهاتف المحمول والمستخدمين الشباب باستخدام ادوات التحليل الإحصائية. تعتبر هذه الدراسة مهمة لكونها تتعامل مع أحد الموضوعات الحيوية في الوقت الحاضر والا وهي: كيفية تمكين استخدام التسويق عبر الهاتف المحمول في بيئتنا وعلاقته بقبول المستخدمين الشباب للتقنيات الحديثة للتسويق. لتحقيق أهداف الدراسة ، تم توزيع 87 استمارة استبيان على عينة عشوائية من مستخدمي الهواتف المحمولة ، وبعد ذلك قمنا بتحليل النتائج على برنامج SPSS ، وتم اختبار العلاقة بين كل من متغيرات الدراسة. يمكن تلخيص مشكلة البحث بأسئلة البحث التالية: هل يشعر جميع المستهلكين الشباب بالرضا تجاه إعلانات التسويق عبر الأجهزة المحمولة المستمرة التي يتم عرضها على هواتفهم المحمولة؟ هل تساعد إعلانات التسويق عبر الأجهزة المحمولة المستهلكين على اتخاذ قرار شراء صحيح؟ هل تساهم إعلانات التسويق عبر الأجهزة المحمولة في اقناع المستهلكين الشباب بتغيير قرار الشراء الخاص بهم من منتج إلى آخر؟ وانتهت الدراسة بمجموعة من الاستنتاجات ، أهمها وجود علاقة معنوية بين التسويق عبر الهاتف المحمول والمستهلكين الشباب. بناءً على الاستنتاجات التي توصلت إليها الدراسة ، تم التوصل إلى مجموعة من التوصيات، اهمها ضرورة اهتمام جميع الشركات ببناء بنية تحتية لإعلانات الهواتف المحمولة مرضية، لأن الهواتف المحمولة هي أسهل طريقة للبقاء على اتصال مع المستهلكين في الوقت الحاضر. وتحتاج الشركات إلى استخدام إعلانات موثوقة يتم عرضها للمستهلكين المستهدفين مصحوبة بتجارب حقيقية في استخدام المنتج أو الخدمة.This study aims to identify the concept of mobile marketing because it is one of the most important topics that are usually skipped by our organizations because most of them still work in the traditional way. the main goal is to measure the relationship between mobile marketing and young consumers using statistical analysis tools. This study is important because it deals with one of the vital topics today, namely: How to enable the use of mobile marketing in our environment and its relationship to the acceptance by young consumers of modern marketing techniques. To achieve the aims of the study, 87 questionnaires were distributed to a random sample of mobile phone users, after that the questionnaire were analyzed to find the results on the SPSS program and the relationship between each of the study variables was tested. The research problem can be summarized with the following research questions: Do all young consumers feel satisfied with the ongoing mobile marketing ads shown on their mobile phones? Do mobile marketing ads help consumers make the right buying decision? Do mobile marketing ads help consumers make the right buying decision? Do mobile marketing ads persuade young consumers to change their purchasing decision from one product to another? The study ended with a set of conclusions, the most important of which is the existence of a moral relationship between mobile marketing and young consumers. Based on the findings of the study, a set of recommendations make, the most important of which is the necessity of all companies' interest in building a satisfactory mobile advertising infrastructure, because mobile phones are the easiest way to keep in touch with consumers today. Businesses need to use reliable advertisements that are shown to their target consumers accompanied by real experiences in using the product or service
Levels of Apelin, Endoglin, and Transforming Growth Factor Beta 1 in Iraqi Women with Polycystic Ovary Syndrome
No full textPolycystic ovary syndrome (PCOS) is one of the most common causes of infertility in women of reproductive age. The aim of the study was to determine the level of apelin, insulin resistance (IR), transforming growth factor beta 1 (TGF-β1), and endoglin in women with polycystic ovary syndrome. Fifty PCOS patients and 40 non-PCOS infertile patients were recruited. The fasting serum levels of folliclestimulating hormone (FSH), luteinizing hormone (LH), testosterone (T), prolactin, fasting blood glucose, insulin, and apelin at the early follicular phase were measured. Levels of apelin, LH, LH/FSH, T, and fasting insulin, as well as homeostatic model assessment of IR (HOMA-IR) in PCOS patients, were significantly higher than in the control group. Correlation analysis showed that apelin level was positively correlated with body mass index and HOMA-IR. Apelin levels and TGF-β1 were significantly increased in PCOS patients while show decrease levels of endoglin
Nutritional Characteristics of Pregnant Women and its Relation with Anemia during Pregnancy in a Sample of Kurdish Women/Iraq
No full textAnemia in pregnancy is a major public health problem, especially in developing countries. This study aimed to assess the nutritional characteristics of pregnant women and find out its relationship with anemia during pregnancy. A descriptive, cross-sectional study was conducted on 600 pregnant women who attended four primary health-care centers which randomly selected according to the geographical area. A specially designed questionnaire was prepared by the researcher after extensive review of relevant literature. The severity of anemia is determined according to Alene and Dohe. Estimation and calculation of dietary characteristics was done according to food frequency questionnaire, frequencies and percentage, mean and standard deviations, and Chi-square test of association and regression analysis. There was a highly statistically significant association between anemia with eating vegetables and chicken, and a high significant relation of anemia with eating beef and eating nuts. Furthermore, there was a highly significant association between severity of anemia with eating nuts, and a significant association with eating vegetables, while there was no significant association with other variables. Logistic regression analysis revealed that eating less than normal of vegetables, beef, and nuts were indicated risks of anemia. Eating less than normal of vegetables, beef, and nuts were indicated risks of anemia during pregnancy
Organisational Justice and Organisational Commitment among Secondary School Teachers
No full textThe purpose of this study is to find the relationship between organizational justice (OJ) and organizational commitment (OC) among secondary school teachers. The sample consisted of 98 teachers working in 8 public secondary schools. OJ consists of three dimensions, namely, distributive justice (DJ), procedural justice (PJ), and interactional justice (IJ) which were used to measure the level of perception of justice among teachers, whereas to determine the level of commitment among teachers, the study used OC questionnaire. Pearson correlation and regression analysis methods were used to find the relationship and the impact of OJ on OC. The main findings of the study indicated that there is a positive and significant relationship between OJ dimensions and OC; DJ found highly correlated with OC. However, PJ and IJ positively and significantly predicted OC among secondary school teachers. The study could provide some significant literature contributions on the OJ and OC of secondary school teachers in developing countries
Perception and Opinion of Customers towards Automated Teller Machine Services with Special Reference to Kurdistan Region
No full textModern technology has changed human life by making it faster and easier. Technology innovation emerged as source of competitive strength and can achieve success through new innovation. ATM plays vital role in banking industry by providing all necessary banking facilities in easy and handy way to their customers at their doorstep. As Kurdistan is growing economy, therefore to assess perception and expectation of ATM customers, 315 respondents from different places of Kurdistan region were taken into consideration. This study is based on personal approach and observation. Structured questionnaire administered after taking opinion and modification by banking personal, customer discussion and review of literatures. For the convenience of respondents Likert measurement scales was used. To identify most service quality dimensions in connection with overall customer satisfaction; reliability test, descriptive analysis, correlation and coefficient and regression analysis test and ANOVA tests are done through SPSS 25.0. At the end it is concluded that most of factors are positively, significantly correlated with overall customer satisfaction. Based on personal discussion with customers and bank officials’ and literature reviews, recommendations are mentioned at the end
Linguistic Deviation in Literary Style: A Stylistic Analysis
No full textThis paper is an attempt to shed light on linguistic deviation in literary style. Literary language, with its three main genres; poetry, drama and prose, is a situational variety of English that has specific features which belong to the literary and elevated language of the past. Literary language has been assigned a special status since antiquity, and is still used nowadays by some speakers and writers in certain situations and contexts. It has been considered as sublime and distinctive from all other types of language; one which is deviant from ordinary use of language in that it breaks the common norms or standards of language. A basic characteristic of literary style is linguistic deviation which occurs at different levels; lexical, semantic, syntactic, phonological, morphological, graphological, historical, dialectal and register. All these types of deviations are thoroughly investigated and stylistically analyzed in this paper so as to acquaint readers, students of English, researchers, and those interested in the field, with this type of linguistic phenomenon whose data is based on selected samples from major classical works in English literatur
Change of Security Equations within the Strategy of Energy Security: Oil and Natural Gas as a Model
No full textفي الوقت الحاضر، يعتبر عامل الطاقة أحد أهم العوامل الجيوبوليتيكية التي تؤثر على أمن واستقرار مناطق مختلفة من العالم، ولاسيما تلك الغنية بالنفط والغاز الطبيعي. لذلك، يدور هذا البحث حول إظهار طبيعة العلاقة بين مصلحة الطاقة والتغيرات التي تحصل في المعادلات الأمنية للدول بسبب الطاقة، وهو ما يؤثر بدوره على خلق حالة من الاستقرار واللاإستقرار الأمني للبلدان المصدرة والموردة للطاقة. من خلال هذا البحث، نتجاوز الدراسات الحديثة الأخرى حول هذا الموضوع، ونربط أهم عناصر أمن الطاقة بالمعادلات الإستقرار وللا استقرار للدول المصدرة والموردة للطاقة. وبالتالي، فإننا نحلل ما يدفع الدول المصدرة والموردة للطاقة بأن تؤثر على ديناميات تغير المعادلات الأمنية من أجل تأمين المصلحة الطاقوية لبلادهم. الى أن توصل البحث في ختامه الى هذه الحقيقة وهي، رغم نجاح بعض الدول في استخدام الطاقة كقوة صلبة لضمان الاستقرار الأمني لبلدانهم، فأنه بصورة عامة الدول المصدرة والموردة للطاقة ومن أجل تأمين أمن الطاقة، غيروا معادلاتهم الأمنية، وهذا أدى إلى خلق حالة من اللاإستقرار الأمني للدول على المستويات الوطنية والإقليمية وحتى الدولية.Nowadays, the energy factor is considered one of the most important geopolitical factors that affect the security and stability of different regions of the world, especially those rich in oil and natural gas. Therefore, this research revolves around showing the nature of the relationship between the Ministry of Energy and the changes that occur in the security equations of countries due to energy, which in turn affects the creation of a state of stability and security instability for energy sources and the supply of countries. Through this research, we go beyond other recent studies on this topic, and link the most important elements of energy security to equations of stability and instability in energy-exporting and energy-exporting countries. Consequently, we analyze what drives energy-exporting and exporting countries to influence the dynamics of changing security equations in order to secure energy interests in their country. Until the research reached this fact, which, despite the success of some countries in the use of energy as a solid force and to ensure the security stability of their countries with energy ratios, they are generally energy-exporting countries and supplying them, and in order to secure energy security in their countries, they changed their security equations, and led This creates a state of security instability for countries at the national, regional and even international levels
Cytotoxic Effects of Pistacia khinjuk Seed Extracts on Different Cell Lines and its Mitogenic Effects on Blood Lymphocyte In Vitro
No full textReports indicated that extract Pistacia khinjuk has anti-inflammatory, antipyretic, antibacterial, and antiviral, in treating of diarrhea and throat infections and has hepatoprotective effects against acetaminophen and carbon tetrachloride. This study was undertaken to investigate the possible cytotoxic effects of methanolic and aqueous seeds extract of P. khinjuk on different tumors (rhabdomyosarcoma [RD] and murine mammary adenocarcinoma [Ahmed-Mohammed-Nahi-2003 (AMN-3)]) and normal cell lines (murine fibroblast) and its mitogenic effects on blood lymphocytes. The cytotoxic effects of P. khinjuk seed extracts were evaluated on two tumor cell lines, RD and murine mammary adenocarcinoma (AMN-3) and one normal cell line, murine fibroblast (L20B). Moreover, the mitogenic effects of the plant extract were studied, on human blood lymphocytes. Both methanolic and aqueous seed extracts of P. khinjuk significantly induced tumor cell lines and the normal cell line proliferation, especially in highest concentrations. The results show that the extracts induced significant increases in human blood lymphocyte proliferation at 72 h. This activity of plant extracts recommends it as a good mitogenic agent in researches; in conclusion, seed extracts of P. khinjuk induced proliferation of all tested cell lines. High concentrations of both aqueous and methanolic seed extracts of P. khinjuk showed mitogenic effects